" 5) If "sin A=(3)/(5)" and "cos B=(9)/(41)," then find the value of "cos(A-B)

If sin A=(3)/(5) and cos B=(9)/(41),0gltA,Blt(pi)/(2) , then find the value of the following: (a) sin(A+B) (b) sin(A-B) (c) cos (A+B) (D) cos(A-B) If x+y=45^(@) then prove that: (a) (1+tanx)(1+tany)=2 (b) (cotx-1)(coty-1)=2

If sin A=(3)/(5) and cos B=(9)/(41) then find values of the following compound angles

If sin alpha=(3)/(5) and cos beta=(9)/(41) find the value of sin(alpha-beta) and cos(alpha+beta)

If sin A=3/5 and cos B=9/41, 0ltAltpi/2 , 0ltBltpi/2 ,find the value of cos (A-B).

If sin A=(1)/(sqrt(5)) and sin B=(1)/(sqrt(10)) ,find the values of cos A and cos B .Hence using the formula cos(A+B)=cos A cos B-sin A sin B, show that (A+B)=45^(@).

In triangle ABC, if b=3, cos A=3/5 and cos B=5/13 then find the value of (5c)/2

If cos A = (9)/(41) , find the value of (1)/(sin ^(2)A ) - cot ^(2) A

If A+B=90o and cos B=(3)/(5), what is the value of sin A?

If sin A=(3)/(5) and cos B=(9)/(41),0

If sin A=sin B and cos A=cos B, then find the value of A in terms of B.