Given 29 sinA =20 ,find 2+cot2A
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SinA=20/29= P/H
BY APPLYING PYTHAGOROUS THEOREM WE HAVE,
AB^2+BC^2=AC^2
=>400+BC^2=841
=>BC=21
2+Cot2A
=2+(b/h)^2
=2+21×21
=443
BY APPLYING PYTHAGOROUS THEOREM WE HAVE,
AB^2+BC^2=AC^2
=>400+BC^2=841
=>BC=21
2+Cot2A
=2+(b/h)^2
=2+21×21
=443
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