Question

Which of the following statements is true?
a.
sin 30° = cos 30°
b.
sin 35° = cos 55°
c.
sin 60° = cos 60°
d.
sin 55° = cos 25°

Answer 1

Use the calculator, or the unit circle or this: http://en.wikipedia.org/wiki/List_of_trigonometric_identities

Answer 2

its B. because when you solve it they equal to each other

Answer 3

using ur calculator

Answer 4

Thanks :) but ho did you do it? can you type out what you did? Id appreciate it :)

Answer 5

i did sin(35 and i got 0.57... i thought it was b cus it was the closest to my answer but its not the exact answer lol

Answer 6

nvm i got it... im overthinking it