Question

If sin theta + cos theta is equal to cos theta then the value of tan theta is​

Answer 1

Explanation:

Given

Let theta be ∆

By question,

sin ∆ + cos ∆ = cos ∆

or, sin ∆ = 0

By trigonometric table we get,

If Sin ∆=0

==> ∆=0°

therefore tan theta

=tan ∆

= tan 0°

By trigonometric table we get,

tan 0° =0

Ans) tan theta =0

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Answer 2

Answer:

0

Explanation:

sinØ+cosØ=cosØ

sinØ=cosØ-cosØ

sinØ=0

sinØ=sin0 (since sin0°=0)

Ø=0

then on putting the value of Ø, we get

cosØ=cos0=1

tanØ=sinØ/cosØ

=sin0/cos0

= 0/1

=0