Home
Class 11
MATHS
[" 13.If "A" and "B" both are positive a...

[" 13.If "A" and "B" both are positive acute "],[" angles and "cos A=(1)/(7),cos B=(13)/(14)" ,"],[" then the value of "(A-B)" will be- "],[" (A) "15^(@)],[" (B) "30^(@)],[" (C) "45^(@)],[" (D) "60^(@)]

Promotional Banner

Similar Questions

Explore conceptually related problems

If A and B are positive acute angles and cos A=(1)/(7),cos B=(13)/(14), then show that A-B=60^(@).

If A and B are positive acute angles and cos A = 1/7, cos B = 13/14 , then show that A-B=60^0 .

If A,B are acute angles tan A=(5)/(12),cos B=(3)/(5) then cos(A+B)=

If a,B,C are positive acute angles and tan A=(4)/(7),tan B=(1)/(7),tan C=(1)/(8), prove that A+B+C=45

If alpha is a positive acute angle and 2sin alpha+15cos^(2)alpha=7 , then the value of cotalpha is

If A and B are positive acute angles such that sin (A - B) =1/2 and cos (A + B) = 1/2 , then A and B are given by

If A+B, A are acute angles such that sin (A+B)=(24)/(25) and tan A=(3)/(4) , then find the value of cos B .

If A,B,C are positive acute angles and sin(B+C-A)=cos(C+A-B)=tan(A+B-C)=1 then A,B,C are

If B,A+B are acute angles sin(A+B)=(12)/(13),sin B=(5)/(13) then sin A=