If sinθ = 2/3 and 0° < θ < 90°, find cos θ.
Added by Scott R.
Step 1
Since 0^∘<θ <90^∘, we can assume that we are dealing with a right triangle. Let's label the opposite side as 23 and the hypotenuse as x (we don't know the value of x yet). sinθ = opposite/hypotenuse sinθ = 23/x Show more…
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