Question

If tan0=20/21show that(1-sin0+cos0)/(1+sin0+cos0)=3/7

Answer 1

Answer:

Step-by-step explanation:

tanθ = 20/21

so, sinθ =20/29

cosθ = 21/29

now,

(1-sinθ+cosθ)/(1+sinθ + cosθ)

putting the values,

[1 - (20/29)+(21/29)]/[1 +(20/29)+(21/29)]

=(29-20+21)/(29+20+21)

=30/70

=3/7

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