Question

Find all solutions in the interval [0, 2π).

sin2x - cos2x = 0

Answer 1

sin2x = cos2x
now divide both sides by cos 2x

Answer 2

is this multiple choice?

Answer 3

what do you get?

Answer 4

@melchar

Answer 5

pi/4

Answer 6

x = pi divided by four

x = pi divided by four, three pi divided by four, five pi divided by four, seven pi divided by four

x = seven pi divided by four, pi divided by three

x = seven pi divided by four, pi divided by six

Answer 7

is it pi/4

Answer 8

sinx / cos x = tan x
so our eqaution becomes tan 2x = 1

Answer 9

use your calculator to find the angle whose tangent is 1
- this will, give you one value for 2x