Math, asked by beenamohanty5396, 6 months ago

sin A×sin B+cos A ×cos B =

a)cos(A+B)
b)sin(A+ B)
c)cot(A +B) ans-
d)tan(A+B)​

Answers

Answered by souravsarkar045
1

Answer:

None of these options.

Step-by-step explanation:

sinA×sinB + cosA×cosB = cos(A-B)

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