5stars let cos(−θ)=45 and tanθ> 0 . what is the value of sin(−θ) ?

Step-by-step explanation:

Alright, lets get started.

We know the identity, even/odd

cos(-Θ) = cos (Θ)

Means cos(Θ)=

Using triangle method and SOH CAH TOA,  please refer the diagram attached

sin(θ)=

We know, sin(-Θ)= -sin(Θ)

So, sin (-Θ) =

So the answer is C  :  Answer

(a) the volume of the cone is 20/3 in3

hence, option a is correct.

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step-by-step explanation:

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