A Note
Chapter 5: Front Matter · MATHEMATICS · EN medium
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π is one such value of x for which sin x = − . One may take any other value of x for which sin x = − . The solutions obtained will be the same although these may apparently look different. Example Solve cos x = . Solution We have, π cos cos x = Therefore π π ± , where n ∈ Z . Example Solve π tan cot = −
📖 ncert books for class 11 maths cbsc · Page 86
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π is one such value of x for which sin x = − . One may take any other value of x for which sin x = − . The solutions obtained will be the same although these may apparently look different. Example Solve cos x = .
Solution We have, π cos cos x = Therefore π π ± , where n ∈ Z . Example Solve π tan cot = −
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