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

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

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

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

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

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

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^@)

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

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

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

Verify the following identities by substitutihg the values of the trigonometric ratios wiyh respect to the given values of theta .(ii) 1+tan^2theta=sec^2theta(theta=pi/4)