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If sinA=3/5 and cosB=9/41 then find valu...

If `sinA=3/5` and `cosB=9/41` then find values of the following compound angles

A

`sin(A+B)`

B

`sin(A-B)`

C

`cos(A+B)`

D

`cos(A-B)`

Text Solution

Verified by Experts

a) `187/205`, b) `133/205`, c) `-84/205`, d) `156/205`
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Knowledge Check

  • If sinA = 1/2 and cosB = 1/2 then find the value of A + B.

    A
    `75^@`
    B
    `60^@`
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  • If sinA = sinB and cosA=cosB, then which one of the following is correct ?

    A
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    B
    `A=2npi-B`
    C
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    D
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  • If sinA+cosA=(3)/(5) , then find the value of sinA-cosA .

    A
    `(sqrt(41))/(5)`
    B
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    C
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    D
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