Question

if tan A=2/3then find sinA and tanA​

Answer 1

Step-by-step explanation:

tanA=2/3

then,sinA=2/✓13

cosA=3/√13

hence sin^2A+cos^2A=2/13+9/13=1

Answer 2

Answer:

We know,

tan 2A = (2*tan A) / [1 - {(tan A)^2}]

= (2 / 3) / [1 - (1 / 9)] = (2 / 3) / (8 / 9) = (3 / 4)

Therefore, cot 2A = 1 / (tan 2A) = (4 / 3).

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