Question

If sin theeta + cos theeta = cos theeta (theeta doesn't = 90°), then the value of tan theeta is-
a) √2-1. b) √2+1
c) √2. c) -√2​

Answer 1

Answer:

divide by cos theta to whole eqn

then we get ,

sintheta/costheta = 0

tan theta = 0

theta = 90