Question
What is the value of (1 - sin A)/(1 + Sin A) given that
tan A = 5/12 and 0° ≤ A ≤ 90°.Solution
We know tan A = (opposite side)/(adjacent side) = 5/12
Therefore by applying Pythagoras theorem hypotenuse = 13
Sin A = 5/13
(1-sinA)/(1+SinA) = (1-5/13)/ (1+5/13) = 8/18 = 4/9
More Trigonometry Questions
15.99% of 549.99 ÷ 11.17 = ? ÷ 20.15
74.91% of 639.95 – 599.98% of 45 + 119.987 = ?
(4.88 × 5.76)2 - ?2 = 39.89 × 19.86
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exactvalue.)
(1800.23 ÷ 29.98) + (816.32 ÷ 23.9) + 1634.11 = ?
1449.98 ÷ 50.48 × 10.12 = ? × 2.16
36.05 × 5.02 + 12.052 = ? + 9.09 × 4.04Â
(31.9)3 + (34.021)² - (16.11)3 - (42.98)² = ?
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