Use the definition of tangent to find the value of. Find the value of cotangent. Use the definition of cotangent to find the value of. Simplify the value of. Combine and simplify the denominator. Multiply and. Use the power rule to combine exponents. Rewrite as. It can be done with geometric tools. The cosine of angle zero degrees can also be derived in trigonometry by the fundamentals of trigonometry. According to Pythagorean trigonometric identity, the cos function can be expressed in terms of sine function.
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General or Standard form of a Polynomial in One variable. Active Oldest Votes. Edu Edu 1, 1 1 gold badge 9 9 silver badges 23 23 bronze badges.
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