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Without using tables , find the …

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Without using tables , find the value of sin30°-sin90°+2cos0°/tan30°×tan60°

    • Posted by Komal Jaiswal 5 years ago

    CBSE > Class 09 > Mathematics
    • 1 answers

    Yogita Ingle 5 years ago

    Sin30°=1/2

    sin90°=1

    cos0°=1

    tan30°=1√3

    tan60°=√3

    now putting these these value on question

    so..we find

    =1/2-1+2×1/1/√3 ×√3

    =1/2-1+2/√3/√3

    =1-2+4/2

    =3/2

    0Thank You

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