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if sec Q = 5/4 verify that tanQ/1+tanA sin Q/A

  • maths -

    construct a right-angled triangle using the fact that
    secQ = 5/4
    then secQ = 4/5
    adjacent to Q is 4, hypotenuse is 5 ,then
    opposite^2 + 16 = 25
    opposite = 3
    (ahhh, the 3,4,5 right-angled triangle)
    so tanØ = 3/4, sinQ = 3/5

    The expression I am to verify makes no sense, but after you fix it, the above information will let you determine it.

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