Question

if tan teetha = 20/21 , show that {1-sin theeta + cos theeta/1-sin theeta + cos theeta} =3/7

Answer 1

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Answer 2

Given.
Tan theta =20/21
Tan theata =perpendicular /Base
By pythagoras theorem.
(20)2 + (21)2 = h2
400+441 =h2
841=h2
h=root 841
h=29
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