Find the exact value of the following: a). 2 sin 45 2sin30 sec30. + b) sin30 sin45 sin60 c). 2. 2 sin 30 cos 30. + d) sin30 cos30 sin60 cos60. |
Trigonometric Ratios of Special. Angles Worksheet a sec245° csc245°- 1. Answers b sin30° tan45° + tan30° sin60°. 3. C cos30° sin45° + sin30° tan30°. 3√6+2√3. 12. |
Adding (i) and (ii), we get. 2A = 90o or A = 45o. From (ii), we get. B = A = 45o. Hence, A = 45o and B = 45o. Example 23.11: If cos (20o + x) = sin 30o, find x. |
1) Draw both special triangles using radian measures. 2) Use a calculator to evaluate each trigonometric ratio, to four decimal places. a) cos3.43 b ... |
Trigonometric Ratios of. Special Angles. ΜΑΤΗ. MONKS. Answers tan45° sec60°. 5sin 90°. 1. +. 2 cosec30° cot45°. 2 cos0°. 4cot260° + sec230° - 2sin245° cos230° + ... |
One of the primary trigonometric ratios for an angle is given, as well as the quadrant in which each angle is located. Find the other two trigonometric ratios ... |
Find the exact value of each trigonometric function. 1) tan θ x y. 60°. 2) sin θ. |
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