# Suppose that cos(2α)=1/3, 360∘<2α<450∘. Find the six trigonometric values of α.

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Suppose that cos(2α)=1/3, 360∘<2α<450∘. Find the six trigonometric values of α.

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Step 1

Determine the sign of the function values in which of the quadrant as follows. help_outlineImage Transcriptionclose(a) In the first quadrant, all the six trigonometric functions are positive. (b) In the second quadrant, sine function is positive and cosine and tangent functions are negative (c) In the third quadrant, tangent function is positive and sine, cosine functions are negative. (d) In the fourth quadrant, cosine function is positive, sine and tangent function are negative 1 Given that, cos 2a -,360° <2a < 450° 3 fullscreen
Step 2

Find the value of sin α.

Step 3

Find the value of c...

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MathTrigonometry

### Trigonometric Ratios 