Simplify: Tan A (Cot A.Cos A +Sin A) =
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Answer:
see the attached file
Step-by-step explanation:
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Step-by-step explanation:
Tan A (Cot A.Cos A +Sin A) =
Tan A(Cos A / Sin A . Cos A +Sin A)
Tan A(Cos^2A / Sin A + Sin A)
cross multiplication
Tan A[(Cos^2A+Sin^2A) / Sin A]
cos^2A + sin^2A=1
Tan A (1 / Sin A)
Sin A/ Cos A . (1 / sinA)
=1 / Cos A
= Sec A
Keep Solving :-)
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