Ex 3.3 Q 23 Maths XI , Prove that :tan4x= tanx(1−tan 2 x)​/1−6tan 2 ​x+tan 4 ​x

Leçon 1 Alphabet ( Pronuniciation ) ( Idées méthode de français Débutant Ver. 2 Babusha Verma )

Ch Light MCQ, X Science term 1

X MCQ Science Ch 10 light

Class X Maths MCQ Trigonometry tricks(ex 8.4 question 5 i)

Class X Maths MCQ Trigonometry tricks(ex 8.4 question 4 iii)

Class X Maths MCQ Trigonometry tricks(ex 8.4 question 4 iv)

MCQ chapter 1 X Chemical Reactions and Equations

Ex 3.3 Q 12 Prove the following:sin 2 6x−sin 2 4x=sin2x,sin10x, Maths XI

Ex 3.3 Q 23 Maths XI , Prove that :tan4x= tanx(1−tan 2 x)​/1−6tan 2 ​x+tan 4 ​x

Ex 3.3 Q 24 cos4𝑥=1−8sin 2 𝑥 cos 2 𝑥. Maths Class XI

Misc Ch9 Q18 XI If a and b are the roots of x 2​ −3x+p=0 and c and d are roots of the equation x 2​

Misc Ch9 Q19 XI The ratio of the A.M and G.M of two positive numbers a and b, is m:n. Show that a:b

Misc Ch9 Q17 XI If a, b, c, d are in G.P, prove that (a n +b n ),(b n +c n ),(c n +d n ) are in G.P.

Misc Ch9 XI Q16 If If a( 1/b+1/c),b( 1/c+1/a),c( 1/a+1/b)are in A.P., prove that a, b, c are in A.P.

Misc Ch 9 Q10 XI The sum of three numbers in G.P. is 56. If we subtract 1,7,21 from these numbers in

Misc Ch9 Q11 XI A G.P. consists of an even number of terms. If the sum of all the terms is 5 times

Misc Ex Ch9 XI Q9 The first term of a G.P. is 1. The sum of the third and fifth term is 90. Find the

Misc Ex Ch 9 XI Q7 If f is a function satisfying f(x+y)=f(x)f(y) for all x,y∈N such that f(1)=3 ,

Ch 11 Q17 Class IX Calculate the work required to be done to stop a car of 1500kg moving at a veloc

Ch 11 Class IX Q 10 An object of mass 40kg is raised to a height of 5m above the ground what is i?

Activity 11.15 Class IX Science Work and Energy

Activity 11.3 Chapter 11 Class X Science CBSE Ncert

Activity 11.1 Class X Science CBSE NCERT

Activity 11.2 Class X Chapter 11 Science CBSE NCERT