Solve. Sin3x_Sinx=4Cos^2x_2
Answers
Answered by
3
Sin 3x - Sin x
=2Cos (3x + x / 2) X sin (3x - x / 2)
=2Cos 2x . Sin x
=2(2 Cos2 x - 1) Sin x
=(4Cos2 x - 2) Sin x
=2Cos (3x + x / 2) X sin (3x - x / 2)
=2Cos 2x . Sin x
=2(2 Cos2 x - 1) Sin x
=(4Cos2 x - 2) Sin x
manishkr32:
X ka value nikalna hai
=2Cos (3x + x / 2) X sin (3x - x / 2)
=2Cos 2x . Sin x
=2(2 Cos2 x - 1) Sin x
=(4Cos2 x - 2) Sin x
Answered by
1
Step-by-step explanation:
Sin 3x - Sin x
=2Cos (3x + x / 2) X sin (3x - x / 2)
==2Cos 2x . Sin x
=2(2 Cos^x - 1) Sin x
=(4Cos^2x - 2) Sin x
Attachments:

Similar questions