anonymous
  • anonymous
Find all solutions in the interval [0, 2π). sin2x - cos2x = 0
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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cwrw238
  • cwrw238
sin2x = cos2x now divide both sides by cos 2x
anonymous
  • anonymous
is this multiple choice?
cwrw238
  • cwrw238
what do you get?

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anonymous
  • anonymous
@melchar
anonymous
  • anonymous
pi/4
anonymous
  • anonymous
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
anonymous
  • anonymous
is it pi/4
cwrw238
  • cwrw238
sinx / cos x = tan x so our eqaution becomes tan 2x = 1
cwrw238
  • cwrw238
use your calculator to find the angle whose tangent is 1 - this will, give you one value for 2x

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