A) 1
B) 2
C) 3
D) 4
Correct Answer: A
Solution :
(a):\[\left( {{\sec }^{2}}\theta \right)\times \left( 1-{{\sin }^{2}}\theta \right)\left( 1-{{\cos }^{2}}\theta \right)\left( \cos e{{c}^{2}}\theta \right)\] \[={{\sec }^{2}}\theta \times {{\cos }^{2}}\theta \times {{\sin }^{2}}\theta \times \cos e{{c}^{2}}\theta =1\]You need to login to perform this action.
You will be redirected in
3 sec