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e^(7x)-e^(-7x)=...

`e^(7x)-e^(-7x)=`

A

`1+(7x)/(1!)+((7x)^(2))/(2!)+((7x)^(3))/(3!)+....`

B

`1+((7x)^(2))/(2!)+((7x)^(4))/(3!)+....`

C

`2[1+((7x)^(2))/(2!)+((7x)^(4))/(4!)+....]`

D

`2[(7x)/(1!)+((7x)^(3))/(3!)+((7x)^(5))/(5!)+....]`

Text Solution

Verified by Experts

The correct Answer is:
C
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