Question

if sintheta + costheta =√2costheta and theta not = 90 then find the value of tantheta?​

Answer 1

Answer:

sinx+cosx=√2cosx

sin^2x+cos^2x=2cos^2x

1=2cos^x

cos^2x=1

cosx=1/√2

x=45°

tan45°=1

I hope it's right answer