Trigonometry
 Trigonometric Ratio
If one of the trigonometric ratios of an acute angle is known, then the remaining trigonometric ratios of the angle can be calculated.
Example:
If , then find the value of sec θ(1 + tan θ).
Solution:
It is given that
⇒ AB = 7x and AC = 25x, where x is some positive integer
By applying Pythagoras theorem in ΔABC, we get:

Use trigonometric ratio in …
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