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anonymous

  • 5 years ago

can anyone help me with this 2sintcost - cost = 0 im probably overthinking this

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  1. amistre64
    • 5 years ago
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    2 sin(t) cos(t) = sin(2t) when does sin(2t) = cos(t)?

  2. dumbcow
    • 5 years ago
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    factor out the cos

  3. amistre64
    • 5 years ago
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    or...do it the smart way and factor out the ...... lol

  4. dumbcow
    • 5 years ago
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    your way works too

  5. anonymous
    • 5 years ago
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    sint(cost+sint)?

  6. amistre64
    • 5 years ago
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    cos(t)(2sin(t) - 1) = 0 when does cos(t) = 0? 90 and 270 right?

  7. amistre64
    • 5 years ago
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    2sin(t) - 1 = 0 2sin(t) = 1 sin(t) = 1/2...thats a 30 right? and 150?

  8. anonymous
    • 5 years ago
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    k, i knew i had to factor out, just didnt know where to start

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spraguer (Moderator)
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is replying to Can someone tell me what button the professor is hitting...

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