Please help:

4) sin-1 (square root of 5 over 3)

5) cot pie over 12

6) sint= 1/4. 0<t< pie over 2 and sin t is given.

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- April 27th 2009, 07:27 PMdonnyBSome trig questions part 2
Please help:

4) sin-1 (square root of 5 over 3)

5) cot pie over 12

6) sint= 1/4. 0<t< pie over 2 and sin t is given. - April 27th 2009, 08:53 PMSengNee
4) sin-1 (square root of 5 over 3)

Do you mean

5) cot pie over 12

You should find 1st, then find its reciprocal.

You can you your scientific calculator

or

where is a special angle.

6) sint= 1/4. 0<t< pie over 2 and sin t is given.

That means it is in the 1st quadrant.