Answer:
Option C The expression is the sum of four products; there are four terms
Step-by-step explanation:
we have
we know that
The expression is the sum of four terms
Each term is a product
so
there are four products
therefore
The expression is the sum of four products; there are four terms
.
We are given that and (because that's the ground), so substituting that into gives .
The answer is 1.314
hope it helps
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