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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 22701. |
If secA=x+1/4x, Prove that secA+tanA=2x or 1/2x |
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Answer» Thanks SecA=x+1/4x∴, sec²A=(x+1/4x)²=x²+2.x.1/4x+1/16x²=x²+1/2+1/16x²Now, sec²A-tan²A=1or, tan²A=sec²A-1∴, either,\xa0secA+tanA=x+1/4x+x-1/4x [when tanA=x+1/4x]=2x ______________or, secA+tanA=x+1/4x-x+1/4x [when tanA=-(x+1/4x)]=1/4x+1/4x=2/4x=1/2x Kl hi h shivangi Aacha ek baat btao physics ka test kal hai ya parso Okk,??? I will tell you the solution in class. Sushma didi please solve my problem |
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| 22702. |
DE||BC. If BC=8cm,DE=6cm and area of ∆ADE=45cm² what is the area of ∆ABC? |
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Answer» 80 cm 80cm² 80cm square |
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| 22703. |
XY||OR, PQ/XQ =7/3 and PR=6.3cm. find the value of YR |
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Answer» As,XY//ORtherefore,PX/XQ=PY/YRby adding 1 to both sidesPQ/XQ=PR/YRnow put the given values. Kesa ho ga y question 2.7cm |
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| 22704. |
Sin2 + cosec2+1/sec2=2tan |
| Answer» 1+1/sin2=2tan. (sin2+cosec2=1)1+tan2=2tan Hence LHS=RHS | |
| 22705. |
Does class 10 ncert math book is enough for 2020 10th board ? |
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Answer» Dude solve even cbse important questions Also refer exampler, rd sharma & rs agarwal for your best performens no way Do cbse last years questions too yups...especially for basic students its more than enough... |
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| 22706. |
how to divide a line segment in a given ratio. |
| Answer» By the section formula | |
| 22707. |
Prove √2+√3 is irrational number |
| Answer» Let √2 + √3 = (a/b) is a rational no.On squaring both sides , we get2 + 3 + 2√6 = (a2/b2)So,5 + 2√6 = (a2/b2) a rational no.So, 2√6 = (a2/b2) – 5Since, 2√6 is an irrational no. and (a2/b2) – 5 is a rational no.So, my contradiction is wrong.So, (√2 + √3) is an irrational no. | |
| 22708. |
The distance of the point P(3,4) from origin is:: |
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Answer» The answer is 5 by using distance formula 5 |
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| 22709. |
Prove that Tan theta/1-cot theta+cot theta/1-tan theta=1+tan theta+cot theta |
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| 22710. |
State and the Pythagoras theo proff |
| Answer» Prove by constructing other triangle and now similar boths | |
| 22711. |
X square + 2 AV 90 degree angle |
| Answer» | |
| 22712. |
the difference of a rational or irrational number is always |
| Answer» Rational numbers can be written in p/q form where q is not equal to zero. Rational numbers are either terminating or recurring and irrational are just opposite of it. | |
| 22713. |
Cbse ask which types of questions for 2020 standard |
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Answer» Hard Everything in syllabus |
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| 22714. |
If the M term of an A.P is 1/N and the N term is 1/M, show that the sum of MN term is 1/2(MN+1) |
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| 22715. |
If xi =4,8,12,16,20Fi=5,3,x,5,4Mean=12.Find value of ( x ).Pls tell me the answer only. |
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Answer» How by simple formula 13 |
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| 22716. |
How to find the square roots |
| Answer» By prime factorisation and make pairs of two digits and multiply | |
| 22717. |
Divide a line segment 6cm long in the ratio 4:3 |
| Answer» Ncert maths | |
| 22718. |
Which is the only prime number |
| Answer» I think there should be even prime number ? | |
| 22719. |
If x=asinA +bcosA and y=acosA -bsinA,prove that x2+y2=a2+b2. |
| Answer» | |
| 22720. |
( )+( )+( )=301,3,5,7,9,11,13,15Repat the numbers but answer 30 |
| Answer» (7) + (11) + (15- 3) = 30 ? | |
| 22721. |
How many zeros there are in 10 lakh crores ¿¿ |
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Answer» Abe kameene mein behn hoon Aabe saale black heart kisne tuje itna hurt kiya jo itna likh diya.just chill bro??(^^) 13 zeros Sorry ???? I thought 10 lakh ??? Six dude ? 12 Oh my god??? The Indian numbering system is used in the Indian subcontinent to express large numbers. The terms lakh (100,000) and crore (10,000,000)[1] are the most commonly used terms (even in English, such as in a local variety called Indian English) to express large numbers in the system. For example, 150,000 rupees in India is referred to as "1.5 lakh rupees", which is written as 1,50,000 rupees; 30,000,000 (thirty million) rupees is referred to as "3 crore rupees", which is written as 3,00,00,000 rupees with commas at the thousand, lakh, and crore places. There are words for numbers larger than 1 crore as well, but these are not commonly used and are unfamiliar to most speakers. These include 1 arab (equal to 100 crore or 1 billion), 1 kharab (equal to 100 arab or 100 billion), 1 nil (sometimes incorrectly transliterated as neel; equal to 100 kharab or 10 trillion), 1 padma (equal to 100 nil or 1 quadrillion), 1 shankh (equal to 100 padma or 100 quadrillion), and 1 mahashankh (equal to 100 shankh or 10 quintillion). In common parlance, the thousand, lakh, and crore terminology (though inconsistent) repeats for larger numbers: thus 1,000,000,000,000 (one trillion) becomes 1 lakh crore, written as 1,00,000,00,00,000.The Indian numbering system corresponds to the Western system for the zeroth through fourth powers of ten: one (100), ten (101), one hundred (102), one thousand (103), ten thousand (104). For higher powers of ten, the names no longer correspond. In the Indian system, the next powers of ten are called one lakh, ten lakh, one crore, ten crore, one arab (or one hundred crore), and so on; there are new words for every second power of ten (105 + 2n): lakh (105), crore (107), arab (109), etc. In the Western system, the next powers of ten are called one hundred thousand, one million, ten million, one hundred million, one billion, and so on; there are new words for every third power of ten (103n): million (106), billion (109), trillion (1012), etc.The written numbers differ only in the placement of commas, which group the digits into powers of one hundred in the Indian system (except for the first thousand), and into powers of one thousand in the Western system. The Indian and most English systems both use the decimal point and the comma digit-separator, while some other languages and/or countries using the Western numbering system use the decimal comma and the thin space or point to group digits. |
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| 22722. |
What is point of contact |
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Answer» A tangent to a circle is a straight line that touches a circle at one point only. The point where the tangent touches the circle is called point of contact.. |
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| 22723. |
All questions of trigonometry 8.4 |
| Answer» U can have solutions in cbse guide only | |
| 22724. |
trigonometry ke proving wale a sums ki koi trick hai hi to bata do please |
| Answer» Padke | |
| 22725. |
Hcf and lcm of 160 190 and 172 using prime factorization method |
| Answer» 2 | |
| 22726. |
Do we need to bring clipboard in exam hall |
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Answer» Bro agar tere mom dad jabardasti dede tho lija liyo varna akdam lafandaro kai jese paper diyo? No it is not compulsory bro No... It\'s not mandatory |
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| 22727. |
Criteria to pass in IT? |
| Answer» 3 unit read full carefully to take passing marks | |
| 22728. |
7x-15y=2. ,X+2y=3 |
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Answer» Y=19/-29 X=-34/29 x = 19/29 , y = 68/58 |
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| 22729. |
Prove that sin0(1+tan0)+ cos0(1+cot0)=sec0 cosec0 |
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| 22730. |
Value of sin²ф - cos²ф = ? |
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Answer» .. Ab ni krunga aesa kaam?? Sorry yll Koi n!!! But agr tumhara dimak work ni krta ... Toh mt use kra kro!!!? Kl raat k liye ab to dukhi ni n? Hlo suhu.. Gud afternoon ? Kesi ho diku? Good afternoon all.. |
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| 22731. |
sin²ф - cos²ф = ? |
| Answer» | |
| 22732. |
If theta is a complementary angle then sec theta is equal to….....…..….………… |
| Answer» Cosec(90 - theta) | |
| 22733. |
(a+b)(a-b) = |
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Answer» A^2 + B^2 A^2-B^2 a(a-b)+b(a-b)a2-ab+ab-b2:.:. /(a2 - b2)/ A² - B² a2 - b2 |
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| 22734. |
Ex 7.1 |
| Answer» | |
| 22735. |
Cos theta minus cot theta whole square equals to 1 minus cos theta by 1 + cos theta |
| Answer» Cos theta = 1/sin theta-cos theta /sin theta whole square=1-cos theta / sin theta ka whole square 1-cos theta ka whole square / sin square theta =(1-cos theta)(1-cos theta)/(1-cos theta)(1+cos theta) = 1-cos theta /1+cos theya | |
| 22736. |
Find aquqdratic polynomial , the sum and product of whose zeroes are -3 and 5 respectively? |
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Answer» X^2 +3 +5 Xsquare+3x+5 |
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| 22737. |
Is rsaggarwal book chapter 15 perimeter and areas of plane plane figure will come in our board exams |
| Answer» Yes | |
| 22738. |
Sec^6a=tan^6a+3tan^2asec^2a+1 |
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| 22739. |
Sin^A + cos^A = 1 |
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| 22740. |
If p,qand r in AP then p^3+q^3 -8r^3 is equal to |
| Answer» | |
| 22741. |
Du |
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Answer» Dua kro ki block na ho!? ????...Dua... Dua kro!? |
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| 22742. |
If one of the zeros of p(x) = ax^2 + bx + c is 0 then find the value of c |
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Answer» a(0)2+b(0)+c=0 C=0 |
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| 22743. |
The larger of two supplementry angles exceeds the smaller by 18 degree . Find them |
| Answer» 81 and 99 | |
| 22744. |
x^2 +x +1=0 ....x=? |
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Answer» Solve ni krna kya ? Yes...ab uper aa jao ??? .. Vese aapko uper wala samaj aaya root 7 kese hua?? Ha..achha lagta h karne me to kar deti hu ?????? Haan? Aadu aapke ans aap khud hi thanks krti ho?? Vahi...aapne hi to bola tha kal ????? Kal hi kiya tha aur aaj isne post kiya????? I complex number ni adu , i is √-1??? i wale numbers complex numbers??? Yes ???? Aadu ko bhi sikha diya????? But it\'s not in our syllabus..? x = -1+-√3i/2 , where i is complex number ????? x = ( -1 ± √3i ) / 2 Kal bhi batay tha Samaj mai aayega ni but btara hu?? |
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| 22745. |
Valve of sin30° |
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Answer» 1/2 1/2 Thankzzzzzzzz 1/2 1/2 1/2 |
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| 22746. |
The two opposite vertices of square (-1,2) (3,2) ,find the other two vertices. (BC=DC) |
| Answer» | |
| 22747. |
Does we have to write steps of construction or not?? |
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Answer» If mentioned then write? Dont write until not asked |
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| 22748. |
Value of sin30° |
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Answer» 1/2 1/2 1/× 1/2 √3/2 |
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| 22749. |
Hlo friends aapke pas board exams ka blue prints hai kya |
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Answer» U can get it on utube ............. sorry friend .. but i don\'t have ? |
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| 22750. |
(cosec A - sin A)(Sec A - cos A) |
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Answer» Sin *cos sin×cos ? |
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