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# A. Given that TAN(A)==1.7124, find angle A

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A.  Given that TAN(A)==1.7124, find angle A

B.  Given that SIN(A)=0.7734, find angle A

Tiffybean  Nov 18, 2017

#1
+2117
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You have not specified whether to use degrees or radians. Here are a few rules you should know, though

If $$\tan(a)=x\Rightarrow\tan^{-1}(x)=a$$

If $$\sin(a)=x\Rightarrow\sin^{-1}(x)=a$$

This rule is try for cosine as well.

Therefore, we can solve for a by using the inverse tangent function on the calculators.

$$\tan(a)=1.7124\Rightarrow\tan^{-1}(1.7124)=a$$

Degree Mode: $$59.716109581458$$

Radian Mode: $$1.042242728678$$

$$\sin(a)=0.7734\Rightarrow\sin^{-1}(0.7734)=a$$

Degree mode: $$0.013497966524$$

Radian mode: $$0.698572106543$$

TheXSquaredFactor  Nov 18, 2017
#1
+2117
+2

You have not specified whether to use degrees or radians. Here are a few rules you should know, though

If $$\tan(a)=x\Rightarrow\tan^{-1}(x)=a$$

If $$\sin(a)=x\Rightarrow\sin^{-1}(x)=a$$

This rule is try for cosine as well.

Therefore, we can solve for a by using the inverse tangent function on the calculators.

$$\tan(a)=1.7124\Rightarrow\tan^{-1}(1.7124)=a$$

Degree Mode: $$59.716109581458$$

Radian Mode: $$1.042242728678$$

$$\sin(a)=0.7734\Rightarrow\sin^{-1}(0.7734)=a$$

Degree mode: $$0.013497966524$$

Radian mode: $$0.698572106543$$

TheXSquaredFactor  Nov 18, 2017