Question

prove that(cos a/2)+(sin a/2)=√1+sina
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Answer 1

Answer:

R.H.S

sqrt(1+SINA)

sqrt (1+2sinA/2.cosA/2)

sqrt {(sinA/2)`2 + (cosA/2)`2 + 2sinA/2.cosA/2}

sqrt {(sinA/2 + cosA/2)`2}

so,

sinA/2 + cosA/2

(cosA/2 + sinA/2)

sqrt= Square root

i hope you understand.

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