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Class 11 math (India)

Course: Class 11 math (India) > Unit 3

Lesson 6: Trigonometric equations

Proof of the Pythagorean trig identity
Using the Pythagorean trig identity
Use the Pythagorean identity
Solving sinusoidal equations of the form sin(x)=d
Solving cos(θ)=1 and cos(θ)=-1
Principal solutions of trigonometric equation
General solution of trigonometric equation

General solution of trigonometric equation

Find the general solution of the equation cosine, theta, equals, start fraction, minus, 1, divided by, square root of, 2, end square root, end fraction.
Note: below n, \in, Z.

(Choice A)
theta, equals, left parenthesis, 2, n, plus, 1, right parenthesis, pi, plus minus, start fraction, pi, divided by, 4, end fraction
(Choice B)
theta, equals, n, pi, plus, start fraction, pi, divided by, 4, end fraction
(Choice C)
theta, equals, 2, n, pi, plus minus, start fraction, pi, divided by, 4, end fraction
(Choice D)
theta, equals, left parenthesis, 2, n, plus, 1, right parenthesis, start fraction, pi, divided by, 2, end fraction, plus minus, start fraction, pi, divided by, 4, end fraction

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Class 11 math (India)

Course: Class 11 math (India) > Unit 3

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