If sec theta is= 5/4 then write the value of cos theta

Given that:

secθ= 5 / 4

We need to find the value of cosθ

According to trignometric reciprocal fromula we know that

1 / secθ = cosθ

Substituting the given value of secθ in the above equation, we get

1 / secθ =cosθ

=1 / 5/ 4

= 4 / 5

Hence cosθ = 4 / 5

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