prove this its urgent
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Check this... Expand first... Then taking 2 as common and using cos(x+y) formula... And cos2x+1=2cos^2 x formula... U get the solution
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shaivashashu:
please explain 5th and 6th steps
i didnt get them
which one
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see this it might be useful to u
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its there
that step i will say wait need not worry
haa ok
thank u again
or whatsapp contact
9108131629
kkk
i guess its ok
il send a message there
haa good
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