CosA=1/2 value of 1-2Cos^2A
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1-2*1/4
1-1/2
1/2
asa krti hi apki help hua hoga
1-1/2
1/2
asa krti hi apki help hua hoga
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mak143:
aap bhi bhut ache hoo,,,
wse aap bta na kya krti hoo
acha
thnku
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jii smj gya mai,,,
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