1.

Poteelevation clänges to3u Fnd the height of the tree.16. Evaluate 2 cos260+3 sin245-3sin230 2cos290

Answer»

2*(1/2)² + 3(1/√2)² - 3*(1/√2)²*2*(0)

= 1/2 + 3/2 -0

= 4/2 = 2



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