if a is equal to 45 degree verify that fin root 2 A is equal to 2 sin A cos A
Answers
Answered by
1
Answer:
sin2A=2sinA
2sinA.cosA-2sinA =0
2sinA(cosA-1)=0
either 2sinA=0
sinA=0
sinA=sin0°
A= 0°
or cosA -1=0
cosA=1
cosA=cos 0°
A=0° , Answer
Step-by-step explanation:
Similar questions