Does there exist a value of `theta` for which`cottheta=-5`

Does there exist a value of theta for which cosectheta=-5/3

Does there exist a value of theta for which tantheta=10

Does there exist a value of theta for which costheta=3/4

Does there exist a value of theta for which sintheta=-2

Does there exist a value of theta for which sectheta=1/3

Find -the least value of sec^2theta+cos^2theta

Verify the following identities by substituting the values of the trigonometric ratios with respect to the given values of theta .(i) sin^2theta+cos^2theta=1(theta=60^@)

The value of sin(90^@-theta) is

If sin theta-cos theta=0 ,find the value of sec theta+ cosec theta

lf 5 cos theta=7 sin theta , find the value of ( sin theta + cos theta)/(2 sin theta -3 cos theta) .