Political Science, asked by dabraanshul, 7 months ago

tanA-tanB=sin(a-b)÷cosAcosB​

Answers

Answered by RuchithSimha
0

Answer:

sin(A+B) / cosacosB ? tanA + tanB

sin(A+B) = sinAcosB + cosAsinB (identity learnt in 10th or 11th grade just trust me on this.)

sin(A+B) / cosacosB = (sinAcosB + cosasinB) / (cosAcosB)

= sinAcosB/cosAcosB + cosAsinB/cosAcosB

= sinA/cosA + sinB/cosB

= tana + tanB

Explanation:

THIS ANSWER IS ASSUMING THAT THE sin( a + b ) was a typo and the only angles are A & B

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