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Prove that(cos a/2)+(sin a/2)=√1+sina |
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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. plz THANK me |
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