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Find the Exact Value of the Product

Question 491

Multiple Choice

Find the exact value of the product.
-cos 225° cos 45°


A) 1
B) 2
C) Find the exact value of the product. -cos 225° cos 45° A) 1 B) 2 C) D)
D) Find the exact value of the product. -cos 225° cos 45° A) 1 B) 2 C) D)

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