.
COSA = (1 - sa A)
cos
(1-son A)
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Answered by
0
Answer:
formula of cos is
sin²A + Cos²A = 1
Step-by-step explanation:
so here,
LHS = CosA
= 1 - SinA ......{°•° Cos²A = 1 - Sin²A}
= RHS
Hence prove.
Answered by
0
Answer:
(2-sonA) is correct answer
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