Asked by dat
The tangent of an acute angle equals 1/2. What is the sine of the angle?
(A) 1/p3
(B)p5/2
(C) 2/p5
(D) 1/p5 (
E) None of the above.
(A) 1/p3
(B)p5/2
(C) 2/p5
(D) 1/p5 (
E) None of the above.
Answers
Answered by
drwls
Is p supposed to be a square root sign? Better to write sqrt.
The hypotenuse of a right triangle, that has an acute angle A with opposite side length 1 and adjacent side length 2, (so that tan A = 1/2) is sqrt5.
The sine of the angle A is 1/sqrt5
The hypotenuse of a right triangle, that has an acute angle A with opposite side length 1 and adjacent side length 2, (so that tan A = 1/2) is sqrt5.
The sine of the angle A is 1/sqrt5
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