Question

The most general value of A which satisfies both equations tan = -1 and cos = 1/root 2​

Answer 1

Answer:

tanθ=−1 and cosθ=

2

1

Common solutions lie in 4

th

quadrant which is θ=

4

7π

Hence general solution is θ=2nπ+

4

7π

, wheren∈I