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If tan (a+b)=p, tan (a-b)=q,then show that tan2a=p+q/1-pq

Posted by Ashish Chhabra 7 years, 6 months ago

CBSE > Class 11 > Mathematics

1 answers

Nimit Nimit 7 years, 6 months ago

Which class

ANSWER

Best reference books for pcmb tell me quickly plz i want to purchase it now itself

Posted by Mahesh Rd 7 years, 6 months ago

CBSE > Class 11 > Mathematics

3 answers

Rajat Vashisth 7 years, 6 months ago

Maths- das gupta Bio and physics- H.C. verma Chemistry- pradeep

Siddharth Gahalot 7 years, 6 months ago

Physics ki ie irodov

Vikas Singh 7 years, 6 months ago

For maths RD Sharma Physics - pradeep or Sc verma Chemistry - pradeep or abc Bio- i don't have any idea.

ANSWER

Hi Nancy

Posted by Agrawal Agrawal 5 years, 8 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Which is greatest number

Posted by Agrawal Agrawal 7 years, 6 months ago

CBSE > Class 11 > Mathematics

1 answers

Rajat Vashisth 7 years, 6 months ago

10000................ and so on

ANSWER

no one can here solve any doubt ?

Posted by Nancy Rajput 7 years, 6 months ago

CBSE > Class 11 > Mathematics

8 answers

Nancy Rajput 7 years, 6 months ago

☺

Aman Kumar 7 years, 6 months ago

Wlc sis

Nancy Rajput 7 years, 6 months ago

thanks for your help bro

Aman Kumar 7 years, 6 months ago

Finally solved ur all doubt...

Nancy Rajput 7 years, 6 months ago

okk

Aman Kumar 7 years, 6 months ago

Wait I m trying to solve it

Nancy Rajput 7 years, 6 months ago

its true

Aman Kumar 7 years, 6 months ago

Yaaa

ANSWER

Proof that sin 18 degree

Posted by Amshul Raul 7 years, 6 months ago

CBSE > Class 11 > Mathematics

1 answers

ब्राहम्ण Boy 7 years, 6 months ago

It is very easy...

ANSWER

in a survey of 100 persons it was found that 28 read newspaper a , 30 read newspaper b, 42 read newspaper c, 8 read A and B both ,10 read a and c both,5 read a and c both, and 3 read all the newspaper find . 1.how many read none of the three newspaper 2.how many read newspaper c only.

Posted by M Z 7 years, 6 months ago

CBSE > Class 11 > Mathematics

4 answers

Vikas Singh 7 years, 6 months ago

Hi Nancy

Nancy Rajput 7 years, 6 months ago

your second answer is 35

Nancy Rajput 7 years, 6 months ago

you give two times a and c

Aman Kumar 7 years, 6 months ago

Any more question, if there, then I will definitly try once

ANSWER

Sina+sin2a+sin3a=1+cosa+cos2a

Posted by Trisha Singh 7 years, 6 months ago

CBSE > Class 11 > Mathematics

1 answers

Aman Kumar 7 years, 6 months ago

This proof is quite long and not easy to be written here soo...

ANSWER

Find the equation of the parabola with vertex at (0,0)passing through (5,2)and symmetric with respect to Y-axis

Posted by Mayank Aggarwal 7 years, 6 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Value of sin 105°

Posted by Cute Angle 7 years, 6 months ago

CBSE > Class 11 > Mathematics

1 answers

Nancy Rajput 7 years, 6 months ago

(√2 + √6)/4

ANSWER

Find the equation of a locus of a point P the sum of whose distance from (0,2)(0,-2) is 6.

Posted by Konduri Bhaskar 7 years, 6 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Friends who are perfect in the chapter

Posted by Deepika Tiwari 7 years, 6 months ago

CBSE > Class 11 > Mathematics

6 answers

Aman Kumar 7 years, 6 months ago

No prblm

Deepika Tiwari 7 years, 6 months ago

Oh we are just in 1 chapter motion in a straight line

Aman Kumar 7 years, 6 months ago

Kinematics / Motion in a plane

Deepika Tiwari 7 years, 6 months ago

Which chapter is it

Aman Kumar 7 years, 6 months ago

Frnds, I have doubt in physic on topic projectile motion.. whenever a object is projected along x-axis and along y-axis we know that velocity along x axis is always constant and along y axis always varies..but when a moves along X and Y axis we say that object has velocity along y axis but not along x axis.. why????

Deepika Tiwari 7 years, 6 months ago

Sets

ANSWER

Who is on quora?

Posted by Khushbu J 7 years, 6 months ago

CBSE > Class 11 > Mathematics

2 answers

Garvit Jain 7 years, 6 months ago

I am

Deepika Tiwari 7 years, 6 months ago

No one else

ANSWER

tan2x+tan3x+√3tan2xtan3x=√3

Posted by Abhishek Yadav 7 years, 6 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Who applied for reevaluation for class 10

Posted by Mahesh Rd 7 years, 6 months ago

CBSE > Class 11 > Mathematics

2 answers

Monika Gupta 7 years, 6 months ago

Me also have applied for re evaluation

Akash Choudhary Dav Gandhinagar 7 years, 6 months ago

All the students who feel unhappy with the cbse result

ANSWER

Sin(18)

Posted by Vishal Kumar 7 years, 6 months ago

CBSE > Class 11 > Mathematics

1 answers

Aman Kumar 7 years, 6 months ago

Sin (18°) value is √5-1/4...

ANSWER

Who applied for reevaluation for class 10

Posted by Mahesh Rd 7 years, 6 months ago

CBSE > Class 11 > Mathematics

3 answers

Mahesh Rd 7 years, 6 months ago

For which sub

Mahesh Rd 7 years, 6 months ago

u applied ha

Chirag Sharma 7 years, 6 months ago

M

ANSWER

Who applied for reevaluation class 10

Posted by Mahesh Rd 7 years, 6 months ago

CBSE > Class 11 > Mathematics

2 answers

Monika Gupta 7 years, 6 months ago

Me

Mahesh Rd 7 years, 6 months ago

Say quickly plz

ANSWER

Who is not preparing for JEE but for any other Entrance exam?

Posted by Khushbu J 7 years, 6 months ago

CBSE > Class 11 > Mathematics

1 answers

Shikhar Yadav 7 years, 6 months ago

NDA

ANSWER

The set of all natural numbers less than 1

Posted by Mohan Raaj 7 years, 6 months ago

CBSE > Class 11 > Mathematics

3 answers

Nancy Rajput 7 years, 6 months ago

sorry less than 1 is empty set

Nancy Rajput 7 years, 6 months ago

the set of natural number < 1 is empty set

Khushbu J 7 years, 6 months ago

empty set

ANSWER

someone please explain abourt co domain

Posted by A Student 7 years, 6 months ago

CBSE > Class 11 > Mathematics

1 answers

Nancy Rajput 7 years, 6 months ago

the domain of R is the set of all first elements of the ordered pairs in relation R . domain R ={a:(a,b)€R}

ANSWER

Find the domain and range of the function f(x)=x/(1+x^2)

Posted by Kavin Prabhakar 7 years, 6 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

The real number x satisfying √(x+5)÷(1-x) >1 are precisely those which satisfy: (a). x <1 (b). 0 < x <1 (c). -5<x<1 (d). -1<x<1

Posted by Sandra P 7 years, 6 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

cos(A-B)+cos(B-C)+cos(C-B) =-3/2

Posted by Simmi Verma 7 years, 6 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Lim 3x square_ x_ 10 X tends to 2 divided by x square _ 4

Posted by Amacheani Sangma 7 years, 6 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Formula to find modulus in 11th clasa

Posted by Abhishek Rajpoot 7 years, 6 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

If |z−i|≤5 and z1=5+3i (where, i=√-1), the greatest and least values of |iz+z1| are

Posted by Harshita Garg 7 years, 6 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

Find the distance of the point (3,5)from the line 2x+3y-14=0 measured parallel to the line x-2y=1

Posted by Harsh Pandey 7 years, 6 months ago

CBSE > Class 11 > Mathematics

0 answers

ANSWER

If root X + Y = 11 and X + root Y = 7 then find the value of X and. Y with solution

Posted by Abhinay Singh 7 years, 6 months ago

CBSE > Class 11 > Mathematics

1 answers

Suryakant Kumar 7 years, 6 months ago

5

ANSWER

How many of you had given the entrace exam in pratibha for class 11th commerce side

Posted by Khushi Singh 7 years, 6 months ago

CBSE > Class 11 > Mathematics

3 answers

Khushi Singh 7 years, 6 months ago

But i had given the exam in rpvv civil lines my result will come on 25th

H!Mαη$Hμ Ұαδαυ ✔️ 7 years, 6 months ago

If you want to join you must apply in sec 5 ...its is new school...so you will get admission here easily....i am in 12th class

H!Mαη$Hμ Ұαδαυ ✔️ 7 years, 6 months ago

I am in RPVV sector 10

ANSWER

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