Question

If sec thetha×sin thetha = 0, then find the value of thetha.

Answer 1

sec× sin = 1/cos) × sin = sin/cos = tan

so tan theta = 0

theta = 0, pie.........

Answer 2

Sec ¢ × sin ¢ = 0

Sin ¢ = 0 / sec ¢

Sin ¢ = 0

Sin ¢ = 0°

So, theta = 0 °