Problem: Determine the exact value of each trigonometric ratio. I know that i have to use either: OR I'm stuck after that. Please help me.
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First find using the expansion for because 1/3 - 1/4 = 1/12. Now find by expanding
hint ... last two values are on the unit circle ...
Hello, Morphayne! Determine the exact value of: . Your game plan is excellent. Now we must express as the sum of two "familiar" angles. Make a list . . . . . So we have: . . . . . . . . . . . . . . . . Multiply by Multiply by . .
Originally Posted by Morphayne Problem: Determine the exact value of each trigonometric ratio. I know that i have to use either: OR I'm stuck after that. Please help me. Hi Morphayne, Since , And you will probably need to use the half-angle formula for tangent here. See if you can do it from here.
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