Saved Bookmarks
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.
| 35701. |
1+sec-tan/1+sec+tan=1-sin/cos |
| Answer» We have to prove that\xa0{tex} \\frac { 1 + \\sec \\theta - \\tan \\theta } { 1 + \\sec \\theta + \\tan \\theta } = \\frac { 1 - \\sin \\theta } { \\cos \\theta }{/tex}Recall identity sec2\xa0θ – tan2θ = 1Here, LHS\xa0{tex}= \\frac { 1 + \\sec \\theta - \\tan \\theta } { 1 + \\sec \\theta + \\tan \\theta }{/tex}{tex}= \\frac { \\sec ^ { 2 } \\theta - \\tan ^ { 2 } \\theta + \\sec \\theta - \\tan \\theta } { 1 + \\sec \\theta + \\tan \\theta }{/tex}{tex}= \\frac { ( \\sec \\theta - \\tan \\theta ) ( \\sec \\theta + \\tan \\theta ) + ( \\sec \\theta - \\tan \\theta ) } { 1 + \\sec \\theta + \\tan \\theta }{/tex}\xa0[ because, a2\xa0– b2\xa0= (a – b)(a + b)]{tex}= \\frac { ( \\sec \\theta - \\tan \\theta ) [ \\sec \\theta + \\tan \\theta + 1 ] } { ( \\sec \\theta + \\tan \\theta + 1 ) }{/tex}= sec θ – tan θ{tex}= \\frac { 1 } { \\cos \\theta } - \\frac { \\sin \\theta } { \\cos \\theta }{/tex}{tex}= \\frac { 1 - \\sin \\theta } { \\cos \\theta }{/tex}\xa0= RHSHence, proved. | |
| 35702. |
Ncert. All questions. Some applications of trigonometry |
| Answer» Please read all the t ratios and value then try to make itself ? | |
| 35703. |
If the CSA of cylinder is "A " and its volume is "V" then prove that 2V= AR ??? |
| Answer» | |
| 35704. |
Proof 2 is irrational no. |
|
Answer» this question is from ncert book you cn see the answr on page nmbr 12 theorem 1.4 Route 2 is irrational not 2 2 is not an irrational number |
|
| 35705. |
Find the sum of first 22 term of an AP in which d=7 and 22nd term is 149 |
| Answer» 22nd term=149 =›a+21d=149 =›a=149-147 =›a=2 rest do yourself | |
| 35706. |
Can u explain me the thm 6.7 from triangles or the SSS criteria |
| Answer» Yes | |
| 35707. |
In a rectangle ABCD, AB = 20 CM , angleBAC= 60° calculate the side DC and diagonal AC and BD |
|
Answer» DC = AB = 20 cm (given); AC = BD = 40 cm(given) cos60° = B/H => 1/2 = 20/H => H=40 cm. Apply trigonometry? |
|
| 35708. |
To proveUnder route (1+sinA/1-sinA)= secA + tanA |
|
Answer» I want it\'s solution Its ncert question u can see in ncert solutions |
|
| 35709. |
To prove3 - 4 sin square A / cos square A = 3 - tan square A |
| Answer» | |
| 35710. |
If X =a+b, Y =aw+bw , Z = aw^2 +bw I.e show that. X^2 + Y^2 + X^2 =6ab |
| Answer» | |
| 35711. |
Sum of zeroes of polinomial |
|
Answer» Sum of zeroes = -b/a how occurs in different form example Write a question bro |
|
| 35712. |
SecA-tanA=√2tanA prove that secA+tanA=√2secA |
| Answer» | |
| 35713. |
find the value of p if px+2y=5, 3x+y=1 if they have exactly one solution |
|
Answer» Ypu can fimd the answer wid diff nos. Let the value of x in 3x+y=1 be 1 suppose (assumed)3+y=1y=3-1y=2Now in eq.px+2y=5y=2px+2(2)=5px+4=5Let x be 1p+4=5p=5-4p=1Please correct me if i am wrong |
|
| 35714. |
Find 5⃣ rational number between 3by5and 4by5. |
| Answer» Let ,x=3by5 and y=4by5.D=(Y-xupon N+1) formula. N is the number, whose find you. 4by5-3by5 upon 5+1.3-4/5/6= -1by30D= -1by30.then,X+d=3by5+(-1by30)=17by30.X+2d=3by5+(-1×2by30)=16by30X+3d=?X+4d=?X+5d=?Please try again you Thanks | |
| 35715. |
xcube+1uponxcube=110 find x+1uponx |
| Answer» | |
| 35716. |
What is the common difference of an ap if its nth term is 7n -1 |
|
Answer» 7 5 |
|
| 35717. |
1/α +1/β = |
| Answer» α+β/αβ | |
| 35718. |
Explain why 3×-5×7+7 is a composite number. |
| Answer» We have, (3\xa0× 5\xa0× 7) + 7 = 105 + 7 = 112Prime factors of 112 = 2\xa0× 2\xa0× 2\xa0× 2\xa0× 7 = 24\xa0{tex} \\times {/tex}\xa07So, it is the product of prime factors 2 and 7, i.e. it has factors other than 1 and itself. Hence, it is a composite number. | |
| 35719. |
Range of sinx |
| Answer» -1,1 | |
| 35720. |
For which value of k will the following pair of linear equations |
| Answer» | |
| 35721. |
Is their any trick to solve trignometric problems?? |
|
Answer» Sin=per./hyptCos =base/hypt Tan=per./base Cosec =h/pSec=h/bCot=b/hU can learn this like Pandit bhole prasad hr hr bhole I don\'t know any other triick YaaaaLearn all the identities Yes,practice is the only way to solve trignometric problems. |
|
| 35722. |
The 10th term of the A.P ,is 2,7,12,.....is |
|
Answer» And formula is a+(n-1)×d 2+(10-1)×4=2+9×4=2+36=38 A = 2 D = 5 A*10 = 2 + ( 10 - 1 ) × 5 = 47 •• 47 is the 10th term of this A.P. . |
|
| 35723. |
Koi toh bta do yrr board exams march me hoga ya feb or april????????? |
|
Answer» Mostly march me hoga 14 Feb se hi hoga BEST OF LUCK # shivam mathur.... howz it exactly feb 7?? 7 feb March me |
|
| 35724. |
Tomorrow I have mathematics exam so all are prayer for me |
|
Answer» I nk u must get fail all the bst for your exams Nannayi score cheyyu!!( All the best!!) ? Tomorrow I have unit test Yeah????? |
|
| 35725. |
Guys frm tmrw r half-early xams r going to begin...tmrw is math...?? Prepared but a bit fear.. |
|
Answer» All the best shreya Have a chill pil Mineis nahi mine Mineis on 17th October well best of luck Me to... |
|
| 35726. |
If a-b, a, a+b are the zeroes of polynomial f(x)=2x^3-6x^2+5x-7,write the value of a |
| Answer» Given polynomial is p(x) =\xa02x3 - 6x2 + 5x - 7Let\xa0{tex}\\alpha{/tex}\xa0= (a - b),\xa0{tex} \\beta{/tex}\xa0= a and\xa0{tex}\\gamma{/tex}\xa0= ( a + b)\xa0Now,\xa0{tex} \\alpha + \\beta + \\gamma{/tex}\xa0=\xa0{tex}-\\frac{(-6)}{2}{/tex}\xa0= 3⇒ ( a - b) + a + (a + b ) = 3⇒ a - b + a + a + b = 3⇒ 3a = 3\xa0⇒ a = 3/3⇒ a = 1So the value of a in given polynomial is 1. | |
| 35727. |
What is the comman difference if the AP is 2,4,6,8...... ? |
|
Answer» Formula for common difference is T2-T1 =term 2 -term1 =4-2 = 2 Hence common difference is 2 2 Thus the common difference is 2 of given AP Common difference,d=term 2-term1 That is d=4-2=2Thus 2 |
|
| 35728. |
If we write solution as per your app same to same in exam then it will be right |
| Answer» Yes of course the person who is giving solution or any answer of any question will not give you wrong | |
| 35729. |
Show that every positive odd Integer is the form 4q+1 or 4q+3 for some integer q. |
|
Answer» By euclid\'s division algorithm we know that a =bq+r as in the question it is given as 4q+1;then b=4 and as we know 0 2 |
|
| 35730. |
(A*B)2 |
| Answer» 2AB if 2 is not power or AB² if 2 is a power | |
| 35731. |
(Cot A divided by cosec A +1 ) + (cosec A +1 divided by cot A) = sec A |
| Answer» | |
| 35732. |
Three digit number divisble by 7 |
|
Answer» No, the first term is 105 and last term is 994 128 is ans |
|
| 35733. |
8+8×8÷8 |
|
Answer» 16 That\'s wright answer is 16 16 16 8 + 8 × 8 ÷ 8= 8 + 8 × 1= 8 + 8= 16 Using rule of BODMAS . Its answer is 16 16 |
|
| 35734. |
Hii everybody anybody online.... |
|
Answer» Still they are going on .yours over? Half yearly exam is over Aachal.. Hi |
|
| 35735. |
Sec²a-1/cot²a =? |
|
Answer» tan4a here 4 is the power of tanA(tan ki power 4) 1 |
|
| 35736. |
Find the distance from the origin (6,-8 |
|
Answer» 10 -2 |
|
| 35737. |
10101.101÷1.01 |
|
Answer» 101001.09.0099.00999 10,001.090099009 10001.09009 |
|
| 35738. |
Is trigonometry comes apart from ncert in class 10 boards |
| Answer» Trigonometry is a basic subject of maths if you know all formulas of trigonometry you can do any questions of it.There are 75percent chances that it come out of ncert? | |
| 35739. |
Hcf of 43 and 255 by EDL |
| Answer» 255 = 43×5+4043 = 40×1+340 = 3×13+13 = 1×3+0Thus, HCF (255,43) = 1 | |
| 35740. |
Is ncert sufficient for class 10 boards |
|
Answer» No NCERT is not sufficient for board exam to bring good marks.You can just pass NCERT is the base but its importance to practice from other reference books also.... I don\'t think soo? Ofcourse Yess bro |
|
| 35741. |
sin/cos= |
|
Answer» Tan Tan Tan tan Tan |
|
| 35742. |
find the value of (1-sin2A) (sec2A) |
| Answer» 1 | |
| 35743. |
How to proff sin2+cos2=1 |
|
Answer» = sin2+ (1- sin2) = 1 = RHS (proved) {°•° cos2 = 1- sin2} How Sinø = p/hCosø = b/hNext add their squares and u will get 1 |
|
| 35744. |
If tan a = 2 - 4 by 3 find sin and Cos A Angle A is greater than zero and less than 180 degree |
| Answer» sina=2/root13cosa=3/root13 | |
| 35745. |
mean of 25 observation is 27 and each observation is deceased by 7 what will be the new mean |
| Answer» Ex 6.2 | |
| 35746. |
Find the 6th term from the end of the AP 203,210,217..............896? |
| Answer» 861 | |
| 35747. |
For what value of x will points (x,1),(2,1) and (4,5) lie on the a line? |
|
Answer» x=2 Find using ar(triangle ABC) =0 Find it with the help of formulae-Ac=ab+bc |
|
| 35748. |
When is cbse board exam |
| Answer» February-march | |
| 35749. |
Of the diagonal of a parallelogram is equal to the square of its side |
|
Answer» no No , |
|
| 35750. |
ಬಿ ಪಿ ಟಿ therom |
|
Answer» Thales Theorem Type in hindi |
|