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What is the Pythagorean identity in trigonometry?

What is the formula for calculating the sine of an angle in a right triangle?

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Answers

1
What is the formula for calculating the sine of an angle in a right triangle?
sin(A) = hypotenuse/adjacent
sin(A) = opposite/adjacent
sin(A) = adjacent/hypotenuse
sin(A) = opposite/hypotenuse
2
What is the Pythagorean identity in trigonometry?
sin²θ + cos²θ = 1
cot²θ + 1 = csc²θ
tan²θ + 1 = sec²θ
All of them
3
What is the relationship between the cosine and sine functions in a right triangle?
They are inversely proportional
They are reciprocal
They are complementary
They are equal
4
What is the value of tan x?
\frac{\sin x}{\sin x}
\frac{opposite}{adjascent}
\frac{\cos x}{\sin x}
\frac{opposite}{hypotenuse}
5
Adjascent = 4, opposite = 3, and the angle is x. What is the value of sin x?
4/3
3/4
None of these
3/5
6
What is the formula for calculating the cosine of an angle in a right triangle?
Cos(A) = hypotenuse/adjacent
Cos(A) = opposite/adjacent
Cos(A) = adjacent/hypotenuse
Cos(A) = opposite/hypotenuse