Using simpler trigonometric identities, the given identity was proven below.
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How to solve the trigonometric identity?</h3>
Remember that:

Then the identity can be rewritten as:

Now we can multiply both sides by cos⁴(x) to get:

Now we can use the identity:
sin²(x) + cos²(x) = 1

Thus, the identity was proven.
If you want to learn more about trigonometric identities:
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Answer:TO THE 76N POWER
Step-by-step explanation:
Answer:
768
Step-by-step explanation:
because they are multiplying times 4
Answer:
Yes
Step-by-step explanation:
Of course we can.
Answer: 105 and angel 2 are alternate exterior angles, angle 2 is 105 degrees. Angles 1 and 2 and supplementary so 180-105 is 75. Angle 1 measures 75 degrees.
Step-by-step explanation:
The answer is A.