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find the exact value of the indicated trigonometric function of theta cosθ=4/7,tanθ<0 fin sin theta

Mathematics
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|dw:1360331199543:dw|
you find the lengths of the triangle using pyth. theorem

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Other answers:

then use the principle of sin(theta)=opp/hype, and tan(theta)= sin.cos or =opp/dj
|dw:1360331698436:dw|
tan(theta)=sin(theta)/cos(theta)
cos is adj/hype
but here tan theta is not less than 0(zero)
yes exactly @huneya
sin(theta)=opp/hype
tan(theta)=opp/adj
recheck your question
yes @rizwan has a point tan(theta) is not less than zero
that condition confused me as well
or its an error by the book or ur teacher
you can use another method to solve this
\[\sin^2(\theta) = 1 - \cos^2(\theta)\]
=1-(4/7)^2

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