Math, asked by vishalkhairnar8860, 3 months ago

2.sinA.sinB = cos(A - B) – cos(A + B).

Answers

Answered by santdas36

1

Answer:

cos(A-B) = cosAcosB + sinAsinB

cos(A+B) = cosAcosB - sinAsinB

cos(A-B) - cos(A+B)

= cosAcosB + sinAsinB - (cosAcosB - sinAsinB)

= 2sinAsinB

Answered by jaklapallyl

0

Answer:

yes hope this helps vi 9v8v

Step-by-step explanation:

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