1.

Assertion (A) : (3^2)/(2!) +(3^4)/(4!)+(3^6)/(4!)+ .... = Cosh 3 -1 Reason (R) : Cosh x =1 +(x^2)/(2!) +x^4/(4!) + .....

Answer»

A is true, R is true and R is CORRECTEXPLANATION of A
A is true, R is true and R is not correct EXPLANATION of A
A is true , R is false
A is false, R is true

ANSWER :A


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