Q.

If  limx→∞ psin2x+1-cos2xx+tanx=1, then the value of p is __________

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answer is 1.

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Detailed Solution

limx→0 psin2x+1-cos2xx+tanx=1⇒  limx→0  2psin2x2x+1-cos2xx1+tanxx=1⇒2p+01+1=1⇒ p=1
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