1.

What is the value of (cos2 67°-sin2 23°)

Answer» 0
Maf kiya
Sorry.. For some mistakes in answer.. Actually i didn\'t see the question properly =Cos 2 67°-sin2 23° =Cos(90-23)-sin2 23°=Sin2 23-sin2 23=0
Dk niche comments pado
As we know.. Cos2 90°-A=sin A So cos267°=sin2 23° ...cos2 90-23= sin2 23 ....sin2 23°= sin2 23°which is equal to 1
Really
0
Ya its 0
0


Discussion

No Comment Found