if sinA=3/5,then find the value of cosA and tanA
Answers
Answered by
17
Sin A = 3/5
Cos A = 4/5
Tan A = Sin A / Cos A
= 3/5×5/4
= 3/4
You can obtain the value of Cos A by substituting the value of sin A in a right angled triangle then applying Pythagoras theorom.
Answered by
25
Step-by-step explanation:
Given : sinA =3/5
Solution : sin^2A + Cos^2 A =
[3/5]^2 + cos ^2A = 1
9/25 + cos^2A = 1
cos^2A = 1-9/25
cos^2A = 25-9/25
cos^2A = 16/25 .......[Taking square root]
cosA = 4/5
TanA = sinA/cosA
tanA = 3/5/4/5
tanA = 3/4
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