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Trigonometrical...

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  • Question 1
    1 / -0

    If angle y is acute, i.e. 0° < y < 90° and sec 55° cos (90° - y) = 1; find the measure of angle y.

  • Question 2
    1 / -0

    What is the value of ?

  • Question 3
    1 / -0

    What is the value of?

  • Question 4
    1 / -0

    What is the value of ?

  • Question 5
    1 / -0

    What is the value of (sec- cos) (cosec - sin) cosec2?

  • Question 6
    1 / -0

    Find the value of  +  - x cos. 

  • Question 7
    1 / -0

    Without using tables, evaluate  – 8 sin2 30°.

  • Question 8
    1 / -0

    Evaluate the following without using trigonometric tables:

    cos255° + cos235° +

  • Question 9
    1 / -0

    What is the value of - tanA?

  • Question 10
    1 / -0

    What is the value of cos A + ?

  • Question 11
    1 / -0

    Evaluate cos2 60° + cos2 30° + tan 76°.tan 14° - 2.

  • Question 12
    1 / -0

    Find the value of x if cos35° cosec55° + tan63° tan27° - x cos260° = 1.

  • Question 13
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    Evaluate + 3 cos 40° cosec 50° - 2 sec 35° sin 55°.

  • Question 14
    1 / -0

    What will be the value of ?

  • Question 15
    1 / -0

    What is the value of 2sin2  -  + ?

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