# If #1/4# is a solution of #Sin2x=pCosx#, then p is? (a) -3 (b) 0 (c) 1 (d) -1 I think option (b) is correct, but I want solution.

##### 1 Answer

Dec 28, 2016

#### Explanation:

or

i.e. **either**

or

as

(assuming that