Math, asked by tanishkat10hgs180800, 9 months ago

Is sin a is inversely proportional to cotA?​

Answers

Answered by priyaagari650
1

From given question,

cosA

cosB

=

b

a

cosB

a

=

cosA

b

sin(90

0

−B)

a

=

sin(90

0

−A)

b

Following sine rule, we get

90

0

−B=A

A+B=90

0

180

0

−C=90

0

C=90

0

....right angled triangle.

Now if a=b, then A=B ... isosceles.

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