Question #f7155

1 Answer
sankarankalyanam
Oct 10, 2017

Right angle triangle with sides 3, 4, 5 in the second quadrant

Explanation:

#sin^-1(3/5)=cos^-1(-4/5)#
#sin x=3/5# & #cos x=-(4/5)#
So the triangle is a right angle with sides 3, 4, 5 and in second quadrant as sine is positive and cosine negative.

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