?
If sinθ = 4cosθ, then what is the value of sinθcosθ?
Answer & Solution
Correct Answer:
Option
C
$$\eqalign{ & \sin \theta = 4\cos \theta \cr & \tan \theta = 4 \cr & \sin \theta .\cos \theta = \frac{4}{{\sqrt {17} }} \times \frac{1}{{\sqrt {17} }} = \frac{4}{{17}} \cr} $$
Join the Discussion
Login to post a comment or share your explanation.
Login