Question

HELP PLEASE!!! FAN&&MEDAL!!!!

Which pair of angles has congruent values for the sin x° and the cos y°?
70°; 160°
70°; 70
70°; 120°
70°; 20°

@EclipsedStar @pooja195 @bohotness @Schen421

Answer 1

Hint:
sin(x)=cos(90-x) for all real values of x.

Answer 2

looks like math got this :p

Answer 3

yea ik that but im confused @mathmate @bohotness

Answer 4

okay

Answer 5

The pairs of angles are
(70°; 160°)
( 70°; 70)
( 70°; 120°)
( 70°; 20°)

For example, for the first case, x=70°, y=160°,
The questions wants to know if sin(x)=cos(y), or sin(70°)=cos(160°).
If they are equal, then answer is choice 1. If not, look at the others.

Answer 6

so the answer is B? SInce its congruent and congruent means everything is equal. @mathmate

Answer 7

am I right? @pooja195 @mathmate

Answer 8

The questions wants to know if sin(x)=cos(y),
which means if sin(70)=cos(70).
What do you think?

Answer 9

Do u mind helping me with 3 more please

Answer 10

If you post new questions, you get more attention, and perhaps more help.
I think the rule is one question per post.

Answer 11

Tag me after your posts if you wish.