Question

For what x-value(s) does cos(x) = 0?

Answer 1

@shamim

Answer 2

u know cos90=?

Answer 3

wouldnt it be 0

Answer 4

oh ok

Answer 5

cos 90=0

Answer 6

ya u r right!!!!

Answer 7

oh so it is 0?

Answer 8

cos(4*90-90)=?

Answer 9

cos(270)

Answer 10

ya u r right!!

Answer 11

but we can also write cos(4*90-90)=cos 90=?

Answer 12

ok

Answer 13

so thats my answer right?

Answer 14

ya

Answer 15

ok thanks so much :)

Answer 16

we can also write cos 270=0?

Answer 17

right?

Answer 18

anyway glad to help u!!!!!!!!!!!!!