Question

If 5 sin=3,find value of cos2​

Answer 1

Step-by-step explanation:

1. 5sin=3
2. sin=3/5
3. p=3 H=5
4. using pythagoras theorem B=4
5. 2cos=B/Hx2
6. 2cos=4/5x2
7. 2cos=8/5 ans