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28 January, 23:10

If sin A = 0.29, cos A = 0.96, sin B = 0.42, and cos B = 0.91, what is sin (A+B) ?

a) 0.67

b) 1.00

c) - 0.14

d) 0.71

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Answers (1)
  1. 29 January, 02:45
    0
    The answer is A.

    Step-by-step explanation:

    Using the formula, sin (A+B) = sinAcosB + cosA sinB:

    sin (A+B) = (0.29*0.91) + (0.96*0.42)

    = 0.2639 + 0.4032

    = 0.67 (2. dp)
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