if sina-cosa=1/2 than find sina+cosa
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sinA-cosA=1/2
sin^2*A+cos^2*A-2*sinA*cosA=1/4
1-1/4=2*sinA*cosA
2*sinA*cosA=3/4
(sinA+cosA)^2=sin^2*A+cos^2*A+2*sinA*cosA \
=1+3/4 =7/4
i.e (Sina+cosa)²=7/4
sinA+cosA=√7/2
VaibhavPrasad:
I missed the last step.
r u studying or teaching
??
which class or teacher
I study in class 10
state
OK thanks
UP
I LIVE IN DELHI NCR
great
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I am solve it try it is helpful to you
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IT IS WRONG.
mor ta wrong Tamara bi wrong
sorry wrong
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