1.

A : (3^(2))/(2!)+(3^(4))/(4!)+(3^(6))/(6!)+...=cosh3-1.""R:coshx=1+(x^(2))/(2!)+(x^(4))/(4!)+....

Answer»

Both A and R are TRUE and R is the correct explanation of A
Both A and R are true but R is not correct explanation of A
A is true but R is FALSE
A is false but R is true

ANSWER :A


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