Question

If Sin alpha = cos 2 alpha Then find Tan 2 alpha

Answer 1

Answer:

Step-by-step explanation:

#BAL #bestquality

given,sin alpha=cos 2 alpha

we know that sin 2 alpha=2sin alpha *cos alpha

                                         =4cos 2 alpha*cos alpha

                               tan 2 alpha= sin 2 alpha / cos 2 alpha

                                tan 2 alpha=4 cos alpha