CBSE > Class 10 > Mathematics | CBSE Board | Homework Help

Take LHS... SinA-2sin^3A/2cos^3A-cosA... SinA(1-2sin^2A)/cosA(2cos^2A-1) 【Sin^2A= 1- Cos^2A】.. SinA(1-2+2cos^2A)/cosA(2cos^2A-1).... SinA(cos^2A-1)/cos(2cos^2A-1)... Then cos^2A- 1will be canceled out.... SinA/cosA= tanA LHS=RHS

1Thank You

Anshul ×_*_× Sahu 6 years, 10 months ago

Hence prove

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ANSWER

2x+y=10 and x-3y=12

Posted by Harmanpreet Kaur 6 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

Rakesh Jha 6 years, 10 months ago

x=6,y=-2

0Thank You

Vishal Sharma 6 years, 10 months ago

X=6 , y=-2

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Steve Samuel 6 years, 10 months ago

By elimination method

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ANSWER

The product of zeros of X sq. -15 is?

Posted by Junali Gohain 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Ankush Upadhyay 6 years, 10 months ago

-15

1Thank You

Mishthi ? 6 years, 10 months ago

Junali ap =0 lagana bhul gye....to answer h "-15"

3Thank You

ANSWER

If (tan+sin theta) =m and (tan-sin theta) =n prove that (m square - ન square) = 16mn

Posted by Shourya Solanki 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

The sum of first p terms of an ap is 2ap square + b p find its common difference

Posted by Reena Singh 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

exampler ques.chap1 3 ex 3.3 pls tell

Posted by Mani Arora 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Mani Arora 6 years, 10 months ago

you dont have exampler

0Thank You

Eeya Modi 6 years, 10 months ago

Which question??

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ANSWER

1÷(a+b+x)=1÷a+1÷b+1÷x find the value of x

Posted by Sabrina Spellman 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Sabrina Spellman 6 years, 10 months ago

X=-a or -b

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Chetna ? 6 years, 10 months ago

x = - a and x= -b

3Thank You

ANSWER

Prove that root 7 is an irrational number by contradiction method

Posted by Sree Krishna 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Lijo Jose 6 years, 10 months ago

What is contradiction method??

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ANSWER

Theorem 6.1 class 10

Posted by Kartik Kartik 6 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

Sarthak Paliwal 6 years, 10 months ago

Ncert m h

0Thank You

Nishant Vishwakarma 6 years, 10 months ago

Bpt theoram

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Garima Choudhary 6 years, 10 months ago

Yaar google pe serch maar mil jayegi

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ANSWER

ABC os a isosceles triangle in which AB=AC=10,bc =12cm. PQRS is a rectangle inside the isosceles triangle.givePQ=SR=2x prove that x=6-3y/4

Posted by Gupta Shivaay 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

If sinΦ+cosΦ=p and secΦ+cosecΦ=q,then prove that q(p×p -1)=2p

Posted by Nishant Vishwakarma 6 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

Eeya Modi 6 years, 10 months ago

(sin¢ + cos¢ )^2 = p^2 SinA ^2+ cos A^2+2. sinA.cosA=p^2 1+2.sinA.cosA=p^2 2.sinAcosA= p2-1 sinAcosA=p^2-1/2 We write secA+ cosecA = q 1/cosA+1/sinA=q sinA+cosA/sinA.cosA= q p/p2-1/2=q 2p=q(p^2-1)

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Nishant Vishwakarma 6 years, 10 months ago

Haa sahi h

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Eeya Modi 6 years, 10 months ago

Question shi hna kuch mistake to nhi h na

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ANSWER

Hey dosto plz tell me..... Cha. 12 exercise 12.3ka question number 6 mai area of triangle kaise nikalenge.. Plz batao dosto.... I m waiting for your reply ??

Posted by Sanjana . 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Anushka Jugran ? 6 years, 10 months ago

Area of circle - area of equilateral triangle

1Thank You

ANSWER

An AP consist of 50 term of wich 3rd term is 12 and the lasr term is 106 Find the 29th term

Posted by Mohit Netam 6 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

Anushka Jugran ? 6 years, 10 months ago

Yrr ncert ka question hai... Yahan type karna padega plz refer Google... Nd plz don't mind

1Thank You

Mohit Netam 6 years, 10 months ago

Solution to dedo yar

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Anushka Jugran ? 6 years, 10 months ago

2Thank You

ANSWER

Find the hcf of 96 and 404 by the prime factorisation method. Hence find their lcm

Posted by Mohammad Amaan 6 years, 10 months ago

CBSE > Class 10 > Mathematics

4 answers

Anushka Jugran ? 6 years, 10 months ago

LCM 9696... HCF 4

2Thank You

Sw Kkk 5 years, 8 months ago

Typing mai time jata hai ....tu brainly pe search kr jaldi milega teko????

2Thank You

Mohammad Amaan 6 years, 10 months ago

agr aata to puchta kun bhai

1Thank You

Sw Kkk 6 years, 10 months ago

Khud kr

1Thank You

ANSWER

Find the area of quad ABCD whose vertices are A(1,0) B(5,3) C(,2,7)and D (2,4)

Posted by Rahul Kumar 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Nikhil Thomas 6 years, 10 months ago

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ANSWER

an oil funnel made of tin sheet consists of a 10 cm long cylindrical portion attached to a frustum of cone if the total height is 22 CM diameter of a cylinder person is 8 cm and the diameter of the top of the funnel is 18 cm find the area of the tin sheet required to make the final

Posted by Naveen Bharti 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Anushka Jugran ? 6 years, 10 months ago

5478/7

1Thank You

ANSWER

What is the next term of the A.P. √8,√18,√32..... ..?

Posted by Nishant Vishwakarma 6 years, 10 months ago

CBSE > Class 10 > Mathematics

4 answers

Garima Choudhary 6 years, 10 months ago

5√2 or √50

1Thank You

Rahul Kumar 6 years, 10 months ago

5√2

1Thank You

Naveen Bharti 6 years, 10 months ago

5✓2

2Thank You

Sandhu? Jasline? 6 years, 10 months ago

5√2

1Thank You

ANSWER

The 14th term of an A.P.is twice its 8th term. If its 6th term is -8 then find the sum of its first 30 terms

Posted by Khushali . 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Nishant Vishwakarma 6 years, 10 months ago

a14=2(a8) a+13d=2(a+7d) a+13d=2a+14d 13d-14d=2a-a -d=a. ---------(1) a6=a+5d=-8-----------(2) putting the vakue of eq (1) in eq (2) -d+5d=-8 4d=-8 d=-8/4 d=-2 Putting the value of d in eq (1) a+5d=-8 a+5(-2)=-8 a-10=-8 a=-8+10 a=2 => s30=30/2(2a+29d) s30=15(2×2+29×-2) s30=15(4-58) s30=15(-48) s30=-720 Ans.

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Naveen Bharti 6 years, 10 months ago

180

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ANSWER

Plz mujhe chapter 12 ka exercise 12.3 ka question no 6 mai area of triangle kaise nikalenge . Eaya Modi plz help me

Posted by Sanjana . 6 years, 10 months ago

CBSE > Class 10 > Mathematics