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    Question

    If x tan 60┬░ + cos 45┬░ = sec 45┬░ then the value of

    x2 + 1 is
    A 6/7 Correct Answer Incorrect Answer
    B 7/6 Correct Answer Incorrect Answer
    C 5/6 Correct Answer Incorrect Answer
    D 6/5 Correct Answer Incorrect Answer

    Solution

    x tan 60┬░ + cos 45┬░ = sec 45┬░┬а x ├Ч┬атИЪ3 +1/тИЪ2 =тИЪ2 тИЪ3 x =тИЪ2-1/тИЪ2 x =1/тИЪ6 x2=1/6 x2+1 =1/6+1 =7/6.

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