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Помогите пожалуйста! 1. Определить четность нечетность функции x/cosx 2. Определить

  1. Помогите пожалуйста!1. Определить четность нечетность функции x/cosx 2.
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  7. Simplify #3:[cosx-sin(90-x)sinx]/[cosx-cos(180-x)tanx] = [cosx-(sin90cosx-cos90sinx)sinx]/[cosx-(cos180cosx+sinx180sinx)tanx] =
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    2. Anonymous asked by Anonymous
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  8. hey, i would really appreciate some help solving for x when:sin2x=cosx Use the identity sin 2A = 2sinAcosA so: sin 2x = cos x
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  9. I have a question relating to limits that I solvedlim(x-->0) (1-cosx)/2x^2 I multiplied the numerator and denominator by
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    2. Alex asked by Alex
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  10. Trigonometric IdentitiesProve: (tanx + secx -1)/(tanx - secx + 1)= tanx + secx My work so far: (sinx/cosx + 1/cosx +
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    2. Dave asked by Dave
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