limit........log(1+tan3x)/x
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lim (x---> 0) (log (1+tan3x)/x
lim (x---> 0) {log (1+tan3x)/(tan3x)}tan3x/x
lim(x----> 0) tan3x/x
lim (x--> 0) (tan3x/3x)3x/x
=3
lim (x---> 0) {log (1+tan3x)/(tan3x)}tan3x/x
lim(x----> 0) tan3x/x
lim (x--> 0) (tan3x/3x)3x/x
=3
abhi178:
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