if Sin A + cos is equal to 1 then the value of sin 2A is
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Solve these question by Pythagoras theorem.
ABgujjar:
anaya g help me
for what
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heya,◆◆◆◆◆
SinA+cosA=1
squaring on both side .
then we get.
sin^2 A+cos^2A+2sinA*CosA=1^2
1 + 2sinA*cosA=1
2 sinA*cosA=0
2sinA*cosA=sin2A
so,,,,, sin2A=0
hope it help you.
@rajukumar.☺☺☺☺
SinA+cosA=1
squaring on both side .
then we get.
sin^2 A+cos^2A+2sinA*CosA=1^2
1 + 2sinA*cosA=1
2 sinA*cosA=0
2sinA*cosA=sin2A
so,,,,, sin2A=0
hope it help you.
@rajukumar.☺☺☺☺
thanks
plz one question solved
Which one of the following is different from the rest ?
option a CA b KI c YW d VX
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