2 cosh 3 cosh 5 =

Observe the following statements: Assertion (A) : 2 cosh 3 cosh5 = cosh8 + cosh2 Reason (R ) : 2cosh alpha cosh beta = cosh (alpha+beta)- cosh(alpha-beta) Then the true statement among the following is

Prove that sinh(x-y) = sinh x cosh y - cosh x sinh y .

sinh3 - cosh3 =

cosh 2 + sinh 2 =

The function cosh ( cos x) decreases in

If cosh theta = 3, then the value of cosh 3 theta =

cosh 3 theta = 99 if cosh theta =

Show that cosh(3x) = 4cosh^(3)x-3coshx

Prove that cosh3x = 4 cosh^(3)x-3coshx

Ascending order of the following A) Cosh 2 + sinh 2 B) cosh 2 - sinh 2 (C ) cosh 0 + sinh 0 (D) (cosh 2 - sinh 2)^2