Mathematics: Δabc is a right triangle in which ∠b is a right angle, ab = 1, ac = 2, and bc = sqrt(3).cos c × sin a = i think the answer is 3/4, because cos(c) = adj / hypot and sin(a) = opposite / hypotcos(c) = sqrt(3) / 2sin(a) = sqrt(3) / 2which is 3/4 when multiplied.

Δabc is a right triangle in which ∠b is a right

tonya3498

15.03.2022

$\frac{3}{4}$

Step-by-step explanation:

cosC = cos30° = $\frac{adjacent}{hypotenuse}$ = $\frac{BC}{AC}$ = $\frac{\sqrt{3} }{2}$

sinA = sin60° = cos30° = $\frac{\sqrt{3} }{2}$

Hence

cosC × sinA = $\frac{\sqrt{3} }{2}$ × $\frac{\sqrt{3} }{2}$ = $\frac{3}{4}$

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izayahclark5123

18.09.2020

the first one, if you solved it using the calculator, the answer will be 0

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