CBSE Class 12-science Answered
tanx =3/4 and x lies in 3rd quadrant find sinx
Asked by rajashekararishu | 05 Jan, 2024, 09:31: PM
Expert Answer
If angle x is in third quadrant , then 180o < x < 270o
Let x = 180 + θ , so that 0 < θ < 90o
tan(x) = tanθ = 3/4 , then θ = tan-1(0.75) = 36.9o
hence x = 180+ 36.9o = 216.9o
sin(x) = sin(216.9o) = -0.6
Answered by Thiyagarajan K | 05 Jan, 2024, 11:01: PM
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