Q. Find an angle θ coterminal to −747∘, where 0∘≤θ<360∘.Answer:
Add 360°: To find a coterminal angle, we can add or subtract multiples of 360° to the given angle until the result is within the desired range of 0° to 360°. Since −747° is negative, we will add 360° repeatedly until we get a positive angle in the specified range.
Add 360°: First, add 360° to −747°: −747°+360°=−387°. The result is still negative, so we need to add 360° again.
Add 360°: Add 360° to −387°: −387°+360°=−27°. The result is still negative, so we need to add 360° one more time.
Add 360°: Add 360° to −27°: −27°+360°=333°. The result is now positive and within the range of 0° to 360°, so we have found a coterminal angle.
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