Question

If sin θ a / b, then cos θ is equal to


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Answer 1

Answer:

90-a/b

Step-by-step explanation:

I think so

since, sin θ = cos (90-θ)

Answer 2

• sinθ = $\frac{perpendicular}{hypotenuse}$
• sinθ = $\frac{a}{b}$

So,

perpendicular = a

hypotenuse = b

base = $\sqrt{b²-a²}$

• cosθ = $\frac{base}{hypotenuse}$

Therefore,

$\cosθ = \frac{ \sqrt{ {b}^{2} - {a}^{2} } }{b}$

$\small\bold\red{@Shrutikhanna2}$✌️✌️

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