Home
Class 10
MATHS
If A=30^@ verify that :- sin3A=3sinA-4si...

If A=`30^@` verify that :- sin3A=3sinA-`4sin^3` A .

Promotional Banner

Topper's Solved these Questions

  • INTRODUCTION TO TRIGONOMETRY

    MBD|Exercise EXERCISE|176 Videos
  • COORDINATE GEOMETRY

    MBD|Exercise EXERCISE|64 Videos
  • PAIR OF LINEAR EQUATIONS IN TWO VARIABLES

    MBD|Exercise EXERCISE|183 Videos

Similar Questions

Explore conceptually related problems

If A= 30^@ verify that :- cos2A= cos^2A-sin^2A .

Prove that: sin3x=3sinx-4sin^3x

If A= 30^@ verify that :- cos2A=1- 2sin^2A .

If A= 30^@ verify that :- cos3A=4 cos^3 A -3cosA .

If A= 30^@ verify that :- sinA=tanA/ sqrt(1+tan^2A) .

If A= 45^@ , verify that : sin 2A =2 sin A cos A .

If A= 30^@ and B= 60^@ , verify that : sin (A + B) = sin A cos B + cos A sin B .

Prove that : sin 4A=4 sinA cos^3 A- 4 cosA sin^3 A .

Prove that : sin 3 theta=3 sin theta-4 sin^3 theta .

Evaluate : int sin^4xcos^3xdx .