Home
Class 12
MATHS
If tanh alpha = 2//3, tanh beta = 3//5 t...

If tanh `alpha = 2//3`, tanh `beta = 3//5` then cosh `(alpha - beta)` =

A

`9//20`

B

`9sqrt5//20`

C

`1//9`

D

`20//9`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • HYPERBOLIC FUNCTIONS

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 {SPECIAL TYPE QUESTIONS} SET - 1|3 Videos

  • HYPERBOLIC FUNCTIONS

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 {SPECIAL TYPE QUESTIONS} SET - 2|4 Videos

  • HYPERBOLIC FUNCTIONS

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 {SPECIAL TYPE QUESTIONS} SET - 4|3 Videos

  • Hyperbola

    DIPTI PUBLICATION ( AP EAMET)|Exercise SET 4|4 Videos

  • INDEFINITE INTEGRATION

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE 2 (SET-4)|4 Videos

Similar Questions

Explore conceptually related problems

(A) If tanh alpha=(2)/(3), tan h beta=(3)/(5) then tanh(alpha-beta)=p_(1) (B) sinh(cosh^(-1)3+sinh^(-1)7)=p_(2) (C ) tanh["tanh"^(-1)(2)/(3)+"tanh"^(-1)(3)/(5)]=p_(3)

If cos alpha = (3)/(5) , cos beta =(5)/(13) , "then " cos^(2) ((alpha - beta )/(2))=

If 0 lt alpha , beta lt pi//4, cos ( alpha + beta )=4//5 , sin (alpha - beta) =5//13 " then " tan 2alpha =

If tan A = tan alpha tanh beta , tan B = cot alpha tanh beta , then tan (A + B) =

If alpha , beta are complementary angles , sin alpha = 3//5 , then sin alpha cos beta - cos alpha sin beta =

If cos alpha cosh beta = 1, then beta =

If tanh(x)=(3)/(5) then cosh(2x)=

If tanA=tan alpha tanh beta and tanB=cot alpha tan h beta then tan(A+B)=

If alpha,beta are complementary angles and sin alpha = (3)/(5) , then sin alpha cos beta - cos alpha sin beta =