In Exercises 79-87, graph each side of the equation in the same viewing rectangle. If the graphs appear to coincide, verify that the equation is an identity. If the graphs do not appear to coincide, this indicates the equation is not an identity. In these exercises, find a value of x for which both sides are defined but not equal. sin ( x + π 4 ) = sin x + sin π 4
In Exercises 79-87, graph each side of the equation in the same viewing rectangle. If the graphs appear to coincide, verify that the equation is an identity. If the graphs do not appear to coincide, this indicates the equation is not an identity. In these exercises, find a value of x for which both sides are defined but not equal. sin ( x + π 4 ) = sin x + sin π 4
Solution Summary: The author explains how the equation must be graphed in the same viewing rectangle. If the graph appears to coincide, it verifies that it is an identity.
In Exercises 79-87, graph each side of the equation in the same viewing rectangle. If the graphs appear to coincide, verify that the equation is an identity. If the graphs do not appear to coincide, this indicates the equation is not an identity. In these exercises, find a value of x for which both sides are defined but not equal.
Use a double-angle formula to rewrite the expression 6 cos2 x − 3
Find the exact value of the expression
sin 165
In Exercises , say whether the function is even, odd, or neither.Give reasons for your answer.59. sin 2x 60. sin x261. cos 3x 62. 1 + cos x
Chapter 6 Solutions
Algebra And Trigonometry With Integrated Review, Books A La Carte Edition, Plus Mylab Math With Pearson Etext -- Title-specific Access Card Package (6th Edition)
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Fundamental Trigonometric Identities: Reciprocal, Quotient, and Pythagorean Identities; Author: Mathispower4u;https://www.youtube.com/watch?v=OmJ5fxyXrfg;License: Standard YouTube License, CC-BY