Math, asked by varennyapophali, 5 months ago

sin(A - B)÷
sin A sin B=
cot B-cot A.​

Answers

Answered by Shizzu
1

Step-by-step explanation:

sin(A-B) =sinaAcosB-sinBcosA

so,

sin(A-B) ÷sinAsinB=

=[sinAcosB/sinAsinB]-[sinBcosA/sinAsinB]

=(cosB/sinB)-(cosA/sinA)

=cotB-cotA

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