Question

The general solution of tanθ=-1 and cosθ=1/root under 2 is ?

Answer 1

General Solutions are `= color(crimson)(((3pi)/4) +- n pi), color(green)(pi/4 + n((3pi)/2)`

Explanation:

1) `tan theta = -1`

`=>theta = -pi / 4 +- n pi = ((3pi)/4) +- n pi`

2) `cos theta = 1 / sqrt2`

`=> cos theta = pi/4 + n((3pi)/2)`