Question

If tan A=3/4,Find cos A and cose
c A

Answer 1

Answer:

tan A=3/4

tan A= opposite/adjacent

AB=3

BC=4

using Pythagoras theorem

AC=√(AB²+BC²)

AC=√3²+4²=√9+16=√25

AC=5

cosA =adjacent/hypotenuse

cos A =4/5

cosecA=1/sinA

sinA =opposite/hypotenuse

sin A=3/5

cosec A=5/3

Answer 2

Answer:

cos A=4/5

cosec A=5/4

Step-by-step explanation:

tan=opp/adj

ac^2=ab^2+bc^2

ac=√16+9

ac=5

cos A=adj/hyp

4/5

cosecA=hyp/opp

5/4

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