Question

if tan theta = a/b , cos theta =​

Answer 1

Answer:

cos theta = b

Step-by-step explanation:

using the formula,

tan theta = sin theta ÷ cos theta

Answer 2

tan theta=tan @

cosec^2@=1-tan^2@

cosec^2@=1-(a/b)^2

=(b^2-a^2)/b^2

sin^2@=b^2/(b^2-a^2)

cos^2@=1-sin^2@

cos^2@=1-[b^2/(b^2-a^2)]

=(b^2-a^2-b^2)/(b^2-a^2)

= -a^2/(b^2-a^2)

=a^2/(a^2-b^2)

cos@ =a/root (a^2-b^2)

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