Math Problem Statement

If cot x = -5/12, x lies in second quadrant find the values of other five trigonometric functions

Solution

Given that cotx=512\cot x = -\frac{5}{12} and xx lies in the second quadrant, we need to find the values of the other five trigonometric functions: sinx\sin x, cosx\cos x, tanx\tan x, secx\sec x, and cscx\csc x.

Step 1: Use the cotangent identity

cotx=cosxsinx\cot x = \frac{\cos x}{\sin x}

Given cotx=512\cot x = -\frac{5}{12}, we can write:

cosxsinx=512\frac{\cos x}{\sin x} = -\frac{5}{12}

Step 2: Express cosx\cos x and sinx\sin x using a right triangle

We can let cosx=5k\cos x = -5k and sinx=12k\sin x = 12k for some positive

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Math Problem Analysis

Mathematical Concepts

Trigonometry

Formulas

Cotangent identity: \( \cot x = \frac{\cos x}{\sin x} \)

Theorems

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Suitable Grade Level

Grades 11-12