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`int sin 5x.cosxdx` का मान ज्ञात कीजिए । |
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Answer» `intsin5x.cosxdx` `=(1)/(2)int2sin5x.cosx dx` `=(1)/(2)int(sin6x+sin4x)dx` `=(1)/(2)intsin6x dx+(1)/(2)int sin 4xdx` `=(1)/(2).(1)/(6)(-cos6x)+(1)/(2).(1)/(4)(-cos4x)+c` `=-(1)/(12)cos6x-(1)/(8)cos4x+c` |
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