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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.
| 31651. |
TtanA+cotA=3 to prove 1-tan^2A |
| Answer» Incomplete Question | |
| 31652. |
If tan A + cot A = 4, then tan⁴A + cot⁴A = |
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Answer» Given Equation is tanA + cotA = 4.On squaring both sides, we get= > (tanA + cotA)^2 = (4)^2= > tan^2A + cot^2A + 2tanAcotA = 16= > tan^2A + cot^2A + 2 * tanA * (1/tanA) = 16= > tan^2A + cot^2A + 2 = 16= > tan^2A + cot^2A = 16 - 2= > tan^2A + cot^2A = 14.On squaring both sides, we get= > (tan^2A + cot^2A)^2 = (14)^2= > tan^4A + cot^4A + 2 * tan^4A * cot^4a = 196= > tan^4A + cot^4A + 2 * tan^4A * (1/tan^4A) = 196= > tan^4A + cot^4A + 2 = 196= > tan^4A + cot^4A = 196 - 2= > tan^4A + cot^4A = 194.Hope this helps Just square both the side twice Answer is 574 |
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| 31653. |
Cos⁴A-sin⁴A=? |
| Answer» 2cos^2A-1 | |
| 31654. |
Maths theorems |
| Answer» Bpt converse and thels theorem | |
| 31655. |
What is the equation for finding the sum |
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Answer» S=n/2(2a+(n-1)d) [a+(n-1)d] |
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| 31656. |
P(x)=2y+4 g(x)=5y+7 |
| Answer» What we have to get from it | |
| 31657. |
Hi toppers Full preparing for exams |
| Answer» | |
| 31658. |
2x-(a-4)y=2b+14x-(a-1)y=5b-1Values of a and b |
| Answer» Lol | |
| 31659. |
Formula of volume of frustum |
| Answer» 1/3πh(r^2+R^2+rR) | |
| 31660. |
2 + 2 =? |
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Answer» To lame yaar I think...22. Right. Very worst question 4 haha Ye bhi koi question tha 4 4 |
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| 31661. |
10÷2x+y |
| Answer» 0 since degree of divisor is greater than dividend. | |
| 31662. |
Find hcf and lcm of 96 & 404 |
| Answer» Since, 96 = 2 × 2 × 2 × 2 × 2 × 3and, 404 = 2 × 2 × 101So, HCF of 96 and 404 = Product of common prime factors = 2 × 2 = 4LCM = 2 × 2 × 2 × 2 × 2 × 101 × 3 = 9696 | |
| 31663. |
Important one mark questions |
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Answer» Good morning everyone Educart sample paper is best for this |
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| 31664. |
[email\xa0protected][email\xa0protected]=1/[email\xa0protected] |
| Answer» Wrong questions | |
| 31665. |
Prove that 3+2√3 is an irrational number |
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Answer» Sorry there should be let before the very first word of the solution given below?? 3 + 2 root 3 is a rational number where a divided by b is the simplest form of 3 + 2 root 3 where no any common factor other than 1.Now, a/b=3+2√3==> 2√3=a-3b/b ==> √3= a-3b/2b...Since a-3b/2b is a rational no. And so √3 is a rational no. But this contradicts the fact that √3 is an irrational...Hence our supposition was wrong and so 3+2√3 is an irrational...?? |
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| 31666. |
Chapter 14 exercise 14.1ques no.3 |
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Answer» Kis chapter ka haiMere me to height and distance hai 18=752+20f\\44+f44×18+f×18=752+20f792×18f=752+20f792-752=20f-18f 40=2ff=40/2f=20 |
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| 31667. |
Can u know about CAA |
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Answer» ???Byee Theek h Pahle thi..ab ni Abhi ni hu..but 10th ke baad aaungi Or kya baat hui thi Itni badi smile Thanku.diksha Ok.. Sach.me.???? Ni..yaha..ans ni show ho rhe h Sach me?....but tumhe kaise pata Kya Ans???? Mai bhi..but Kaisi ho Hii U have complete knowledge Yes... Are u talking about citizenship amendment act..??? ?? |
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| 31668. |
how We solve the word problems in mensuration and polynomial |
| Answer» By getting better experience and understandable to question and solve world problems questions by lett x, y or p, q | |
| 31669. |
If the mean of 5 observation is n,n+2,n+4,n+6nd n+8 is 11 find n |
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| 31670. |
Find the perimeter of trangle 0,1 3,0 0,4 |
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| 31671. |
How marks trigonometry topic cover in exam |
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Answer» 8 marks 8 marks 8 marks |
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| 31672. |
(tanA/1-cotA) +(cotA/1-tanA)=1+secAcosecA |
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Answer» LHS - (tanA / 1-cot A) + (cot A /1 - tan A) => [sinA/cosA/(1- cosA/sinA)] + [cosA/sinA/(1- sinA/cosA ] => [ sinA / cosA / sinA-cosA/sinA] + [ cosA/sinA/cosA-sinA/cosA] =>[ sin2A / cosA(sinA - cosA)] + [ cos2A/sinA(cosA - sinA) ] => [ sin2A/cosA(sinA - cosA) ] - [ cos2A/sinA ( sinA - cosA)] => [( sin3 A - cos3A)/ sinAcosA(sinA - cosA) => (sinA - cosA)( sin2A + cos2A + sinAcosA) / sinAcosA(sinA - cosA) => (sin2A + cos2A + sinAcosA) / sinAcosA => ( 1 + sinAcosA)/ sinAcosA => 1/sinAcosA + 1 => cosecA secA + 1 => secAcosecA + 1 => Now, LHS = RHS....So, it\'s prove... Pls answer fast ?? |
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| 31673. |
Example 17 chapter 4 how to do this question please explain |
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Answer» Ncert R s aggrval NCERT? |
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| 31674. |
With what colour pen we have to write our board exams |
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Answer» Black for questions and blue for answers Only blue Avoid gel pen because sometimes it may overlap. A small dot or ink point can cause many problems, loss of marks... So use BLUE BALL PEN.All the best for your exams?? Only and only blue |
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| 31675. |
What is the greatest prime no |
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Answer» Infinity 97;,from 2 to 100 |
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| 31676. |
In a triangle ABC , AD perpendicular to BC and AD²= BD.CD . Prove that ABC is a right triangle . |
| Answer» In triangle ADB and ADC Using pythagoras theorem: AB^2 = AD^2+BD^2....... (1)AC^2 = AD^2 + DC ^2......(2)Now, AB^2 +AC^2 = 2AD^2 +BD^2 +DC^2= 2 BD. CD + BD^2 +CD^2(Given that AD^2=BD.CD)(BD + CD)^2 = BC^2Thus in triangle ABCAB^2 + AC^2 = BC^2Hence triangle ABC is a right angle triangle Angled at A. Angle BAC = 90 | |
| 31677. |
If HCF (6,a) = 2 and LCM (6,a) = 60 then Find the value of a. |
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Answer» LCM x HCF= Product of two numbers60 x 2 = 6 x a120 = 6aTherefore, a = 20 Since, LCM × HCF = Product of two numbers60 × 2 = 6 × a120 = 6a6a = 120a = 120/6=20 A=20 20 HCF *LCM=a*b 2*60=6*aa=2*60/6a=20 |
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| 31678. |
what are the trigonometric ratio |
| Answer» Sin2+cos2=1 sec2=tan2+1cosec2=cot2+1 | |
| 31679. |
Give a method to produce an irrational. |
| Answer» In class 10 there is not any method to prove a number irrationa but u can prove a irrtionan number as irrtional but 1st u have to assume the no. as rational and then u have to proceed it by taking 2 co prime no( the no which have only 1 factor) and by proving that a and b as more than 2 factor. you can prove that the no. given is irrtiona. Check it on 1st to learn properly??? | |
| 31680. |
Trigonometric ratio |
| Answer» | |
| 31681. |
math lab activities cbse 10th |
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| 31682. |
An AP co sists of 50 terms of which 3rd term is 12 and the last term is 106.Find the 29th term. |
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Answer» A3= 12 with the help of this a+ 2d = 12 equation 1.Ap = 50 a50 = 106 again with the help of this a+ 49d =106 equation 2 And solve these equation y get the ans n = 50a3 = 12 -> a + 2d = 12 ->a = 12 - 2dl = 106an =a + (n-1) d106 = a + (50-1)d106 = 12 - 2d+ 49d106-12=47d94=47dd=94÷47=2d=2a=12-2(2)a=12-4a=8a29= a+28da29=8+28(2)a29=8+56a29=64Your answer is 64 |
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| 31683. |
Find mean , median , and mode of the given data |
| Answer» Mean median and mode | |
| 31684. |
The fifth term of a p is 26 and its 10th term is 51 find a p |
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Answer» U can\'t get the whole A.P until n is mentioned. I don\'t understand why people answer for 15th term of the A.P. A5 = 26a + 4d = 260........... (1)a10 = 51a + 9d = 51...............(2)Subtracting eq.(i) from eq.(ii) we getd = 5putting d = 5 in eq.(i) we geta + 4(5) = 26a + 20 = 26a = 6a15\xa0= a + 14da15\xa0= 6 + 14(5)a15\xa0= 6 + 70a15\xa0= 76Hence the 15th term of the AP is 76. |
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| 31685. |
900+1 |
| Answer» 901 | |
| 31686. |
Theoram 6.4 |
| Answer» | |
| 31687. |
√5 prove that it is an irrational number |
| Answer» Let us assume that √5 is a rational number.we know that the rational numbers are in the form of p/q form where p,q are integers.so, √5 = p/q p = √5qwe know that \'p\' is a rational number. so √5 q must be rational since it equals to pbut it doesn\'t occurs with √5 since its not an integertherefore, p =/= √5qthis contradicts the fact that √5 is an irrational numberhence our assumption is wrong and √5 is an irrational number. | |
| 31688. |
2x+3y+17=0. ____4y+6x+15=0 |
| Answer» 16 | |
| 31689. |
X-2y=0,3x+4y=20 draw in graph |
| Answer» Let, x-2y=0 equation 1and 3x+4y=20 equation 2Now, we plot these two equations.The graph of x-2y=0 is shown with green line.The graph of 3x+4y=20 is shown with blue line.The solution to this system will be their intersection point. The intersection point of these graph is (4,2)Refer the attached graph below.Therefore, The solution to the given equation is at point (4,2) or x=4,y=2 | |
| 31690. |
8.4 1 questions |
| Answer» | |
| 31691. |
Make a quadratic equation for the 2 and √2 |
| Answer» 2 | |
| 31692. |
21/x+47/y=110 |
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Answer» Remember. no. Of variable = no.of equation You should have another equation in order to solve the problem. |
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| 31693. |
Degree of remainder is always than degree of divisore |
| Answer» Less than divisor | |
| 31694. |
Standerd paper bohot hard aayega muje bohot tension horaha hai... |
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Answer» Educart ka thik but Oswal ka vi sample paper solve kr lena set by set ,,...jo net pe aaya hua hai avi ek barr usse vi dekh lena Cool mind hoker paper dena Kuch mat karo bs ncert solve karo acche se Me educart ka sample paper solve kr raha hu thik hai ki nhi Thanku for that reply And rear also NCERT Book and solve chapter end question ( optional) question Tension mat lo . Achhe se preparation kro aur kuch nhi ..... Aur study ke liye time table bna kr math ka sample papar solve kro ????? All the best |
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| 31695. |
x+y devide by x³+x²+x+1 |
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| 31696. |
State fundamental theorem if arithmetic |
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Answer» Fundamental theorem of arithmetics, statement:Every composite number can be expressed as a product of primes and this factorisation is unique apart from the order in which the prime factors occur. Ap =a+(n-1)d=Tn |
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| 31697. |
Using division algorithm find hcf of 240,672,768 |
| Answer» | |
| 31698. |
Cann some one tell me important chapter of math to get passing marks |
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Answer» Real numbers ,statistic , probability , construction , polynomial you can prepare these and you should absolutely pass in exam ?? Coordinate geometry is very easy,u can go through it.. Probability, Construction and Statistics Trigonometry and surface area nd volume |
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| 31699. |
If a hexagon ABCDEF circumscribe a circle, prove that AB+CD+EF=BC+DE+FA. |
| Answer» Ggg | |
| 31700. |
Algebric formulas |
| Answer» | |