17. (sine + cose)²=__________
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Answered by
0
Step-by-step explanation:
first apply formula of (a+b)²
(sine+cose)² = sin²e+2sinecose+cos²e
we know
sin²e + cos²e = 1
2sinecose = sin2e
(sine+cose)² = 1 + sin2e
Answered by
2
Answer:
sin^2+cos^2+2sin*cos
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