SOLUTION: 1. If θ is an acute angle and tanθ=0.577, find sinθ and cosθ.
2. Find the exact values of sinθ, cosθ, tanθ if θ=-9π/4.
3. Find t
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Question 333365: 1. If θ is an acute angle and tanθ=0.577, find sinθ and cosθ.
2. Find the exact values of sinθ, cosθ, tanθ if θ=-9π/4.
3. Find the remaining parts of a triangle with , b=5, and c=6.
4. If cotθ=-4 find all the possible values of sinθ, cosθ and tanθ.
5. The angle between the two sides of a parallelogram is . If the lengths of the sides are 5 and 10cm, find the lengths of the two diagonals.
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
\ =\ 0.577)
on 
Find )
and )
\ =\ \sec^2(\varphi))
\ =\ \frac{1}{\cos^2(\varphi))
\ =\ \frac{1}{1\ +\ \tan^2(\varphi))
\ =\ 1\ -\ cos^2(\varphi))
Hence:
\ =\ \sqrt{\frac{1}{1\ +\ (0.577)^2})
\ =\ \sqrt{1\ -\ \frac{1}{1\ +\ (0.577)^2})
You can do your own arithmetic.
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