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Trigonometric Identities
Reciprocal Relations
Quotient Relations
Pythagorean Relations
Addition Formulae
Subtraction Formulae
Product Formulae
Sum Formulae
Functions Of Multiple Angles
Expressions for sin2A and cos2A in terms of tanA Three important results Expressions for sin3A, cos3A and tan3A Functions Of Sub-multiple Angles
In the above values of , and ,the ambiguities can be avoided if we know the quadrant in which lies. That is the limit within which A lies. | ||
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