A laptop computer is purchased for $1550 . after each year, the resale value decreases by 25% . what will the resale value be af
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<u>Given</u>:
Given that we need to prove the identity
<u>Proof</u>:
Step 1: Factor out the common term sin x, we get;
Step 2: Using the identity
Step 3: Reciprocating sec x, we get;
Step 4: Splitting the denominator, we have;
Simplifying, we get;
Thus, the identity is proved.