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If two adjacent vertices of parallelogram are (3,2) (-1,0)and the diagonals intersect at (2,-3) then find the co ordinates of the other two verticess

Posted by Madhu Mitha 7 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

How we can find diffrention

Posted by Saloni Rathore 7 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

CosA -sinA+1/cosA+sinA-1

Posted by Sahil Jakhar 7 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Thanks a lot sir.

Posted by Esha Rani 7 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Tan70°=tan20°+2tan50°

Posted by Ankit Ar 7 years, 4 months ago

CBSE > Class 11 > Mathematics

1 answers

Keshav Bindal 7 years, 4 months ago

As we all know,
tan70°=tan(20+50)°

tan70°=(tan20°+tan50°)/1-tan20°tan50°
tan70°-tan20°tan50°tan70°=tan20°+tan50°

Also

tan70°tan20°=tan70°cot70°=1

Hence
tan70°-tan50°=tan20°+tan50°
So tan70°=tan20°+2tan50°

ANSWER

Sec 4 theta - sec 2 theta = tan 4 theta +tan 2 theta . Please answer it right now

Posted by Esha Rani 7 years, 4 months ago

CBSE > Class 11 > Mathematics

1 answers

Keshav Bindal 7 years, 4 months ago

L.H.S.
sec4θ - sec2θ
= sec2 θ [ sec2 θ - 1 ] { taking sec2 θ as common }
= sec2θ . tan2θ

R.H.S.
tan4θ +tan2θ

=tan2θ [ tan2θ + 1 ]

= tan2θ . sec2θ

=> L.H.S. = R.H.S.

ANSWER

In trigonometric function exercise 3.3 6th question

Posted by Purushottam Gouttam 7 years, 4 months ago

CBSE > Class 11 > Mathematics

1 answers

Aryan Jha 7 years, 4 months ago

As we know Cos A × Cos B - Sin A × Sin B = Cos (A+B) Let π÷4-x = A and π÷4-y = B By applying above formula , we get Cos(π÷4 - x + π÷4 - y) By solving this, Cos[2π÷4 - (x+y)] = Cos[π÷2 - (x+y)] As Cos(π÷2 - theta) = Sin theta By applying this formula in our above equation , we get = Sin (x+y)

ANSWER

If y=log10x then find value of dy/dx

Posted by Uma Shankar Singh Ujjwal 7 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Prove that (1) (AUB)xC=(AxC)U(BxC)

Posted by Khush Raj 7 years, 4 months ago

CBSE > Class 11 > Mathematics

2 answers

Uma Shankar Singh Ujjwal 7 years, 4 months ago

So (AUB)×C=(A×C)U(B×C)

Uma Shankar Singh Ujjwal 7 years, 4 months ago

LetA={1,2} and B={3,4} and C={5,6} So (AUB)={1,2,3,4} so (AUB)×C={(1,5),(1,6),(2,5),(2,6),(3,5),(3,6)} (A×C)={(1,5),(1,6),(2,5),(2,6)} And(B×C)={(3,5),(3,6),(4,5),(4,6)} So (A×C)U(B×C)={(1,5),(1,6),(2,5),(2,6),(3,5),(3,6)}

ANSWER

3.3

Posted by Vicky Kumar 7 years, 4 months ago

CBSE > Class 11 > Mathematics

1 answers

Vicky Kumar 7 years, 4 months ago

7

ANSWER

if x and y are acute angle such that sinx =1/root5 and siny=1/root10 ,prove that x+y=pi by 4

Posted by Aman Kumar 7 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Sin5x - 2 sin 3x+sin x/ cos 5x-cos x

Posted by Koumudhi Chakrala 7 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

2+23-3

Posted by Kajal Gupta 7 years, 4 months ago

CBSE > Class 11 > Mathematics

3 answers

Aradhya Agarwal 7 years, 4 months ago

23+2-3== 25-3= 22

Sharvan Dalal 7 years, 4 months ago

According to standard principle of BODMAS in maths its answer should be 25-3 i.e. 22

Aman Kumar 7 years, 4 months ago

It's a very tough questions but after 4-5 hrs of continuous effort, the answer is :- 2+20=22

ANSWER

The positive integer n fo which 2×2^2+3×2^3+4×2^4+............+n×2^n=2^n+10

Posted by Manas Jha 7 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

What is relation????

Posted by Devendra Izardar 7 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

What is value π/12

Posted by Aryan Yadav 7 years, 4 months ago

CBSE > Class 11 > Mathematics

3 answers

Kapil Tamrakat 7 years, 4 months ago

In which sin ,cos or tan

Aman Yadav 7 years, 4 months ago

bhai yadav ki lajj rakh

Komal Mehta 7 years, 4 months ago

15

ANSWER

6.2+4.33+17.456

Posted by Rishabh Singh 7 years, 4 months ago

CBSE > Class 11 > Mathematics

2 answers

Jatin Saini 7 years, 4 months ago

27.986

Om Rajyaguru 7 years, 4 months ago

By which methods

ANSWER

If pth term is equal to A and qth term is equal to B.so prove that 1/2(p+q){A+B+A-B/p-q}

Posted by Gourav Rathod 7 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Here in 25 que how we wiill use the identity of cos3x

Posted by Mahima Bomb 7 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

(×+3)

Posted by Somesh Bharti 7 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

√5-4¡=x+¡y

Posted by Prashant Kewat 7 years, 4 months ago

CBSE > Class 11 > Mathematics

1 answers

Kartik Pundir 7 years, 4 months ago

X= √5 ; y =-4

ANSWER

X=aw+b,Y=a+bw^2,Z=aw^2+bw Then find value of X^3+Y^3+Z^3. (^2=square,^3=cube)

Posted by Prashant Kewat 7 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

(AUB)'=(A'UB') verify that using venn diagram

Posted by Raj Raj 7 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Half yearly syllabus of class 9th Maths 2018

Posted by Soum Srivastava 7 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

(A')' means

Posted by Ayushi Singh 7 years, 4 months ago

CBSE > Class 11 > Mathematics

1 answers

K . 7 years, 4 months ago

It is set A

ANSWER

What is the range of the function f(x)=1/(2x^2+1).

Posted by Aditya Shreenayak 7 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

If xyz=1 , then prove that - (x+y+z-¹)-¹ + (x+y-¹+z)-¹ + (x-¹+y+z)-¹ = 1

Posted by Himanshu Kumar 7 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Guys can you give me the suggestion about mathematics book.which book is perfect?please write book name.

Posted by Mukul Rao 7 years, 4 months ago

CBSE > Class 11 > Mathematics

7 answers

Jatin Saini 7 years, 4 months ago

NCRTBOOK

Ankit Shareen 7 years, 4 months ago

Exemplar

Ayushi Singh 7 years, 4 months ago

RD sharma

Anamika Gupta 7 years, 4 months ago

Rd sharma

Ayushi Prasad 7 years, 4 months ago

RD SHARMA is the best....

Aman Kumar 7 years, 4 months ago

Yeah..

Mr. Thakur 7 years, 4 months ago

Rd sharma or Rs agarwal

ANSWER

tan6°.tan42°.tan66°.tan72°=1

Posted by Rupam Tyagi 7 years, 4 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

1+4=?

Posted by Sohil Khan 7 years, 4 months ago

CBSE > Class 11 > Mathematics

5 answers

Chaudhary Yash Phogat 7 years, 4 months ago

HahahahA mst question sooooo typical but i have give u answer is 5

Aman Kumar 7 years, 4 months ago

It's a very difficult question but after 4-6 hours of continuous effort, I had found the answer....... 1+4=5

K . 7 years, 4 months ago

Why u have taken maths?

Lover Boy 7 years, 4 months ago

What a question

Sohil Khan 7 years, 4 months ago

5

ANSWER

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