Urgent
which pair of angles has congruent values for the sin x° and the cos y°?
a) 35°; 55°
b) 35°; 145
c) 35°; 70°
d) 35°; 35°

answer: 35°; 55° are the pair of angles has congruent values for the sin x° and the cos y°.

step-by-step explanation:

given : sin x° and the cos y°.

to find : which pair of angles has congruent values for the sin x° and the cos y°?

solution :   sin x° and the cos y° are congruent if they are equal.

we can write by trigonometric rule : sin x° = cos(90 - x.°).

                            sin 35° = cos(90 - 35°).

      x= 35° then , sin 35° = cos(55°).

therefore, 35°; 55° are the pair of angles has congruent values for the sin x° and the cos y°.

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