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Solve the following inequalities cos^(...

Solve the following inequalities
`cos^(-1) x lt 2`

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Verified by Experts

The correct Answer is:
`cos 2 lt x le 1`
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MOTION-INVERSE TRIGONOMETRIC FUNCTIONS-Exercise -3
  1. Let the domain and range of inverse circular functions are defined as ...

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  2. Solve sin^(-1) x gt -1

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  3. Solve the following inequalities cos^(-1) x lt 2

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  4. Solve the following inequality: cot^(-1)xlt -sqrt(3)

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  5. Solve the inequality: (arc secx)^2-6(arc secx)+ 8> 0

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  6. Solve the following inequality: arc cot^(2)x-5 at cotx+6gt0

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  7. Solve the following inequalities arc sin x gt arc cos x

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  8. Solve the following inequalities tan^(2) (arc sin x)gt 1

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  9. Solve the following system of inequations: 4(tan^(-1)x)^2-8tan^(-1)x+3...

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  10. Solve for x : sin^(- 1)(sin((2x^2+4)/(1+x^2)))lt pi-3

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  11. The sum of the infinte series sin^(-1)(1/sqrt(2))+sin^(-1)((sqrt(2)-1)...

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  12. Find the sum of the series :(tan^- 1)1/3+(tan^- 1)2/9+....+(tan^- 1)(2...

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  13. Find the sum of the series cot^(-1) 7+cot^(-1)13+cot^(-1)21+cot^(-1)...

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  14. Find the sum of each of the following series :(i) tan^-1(1/(x^2+x+1))+...

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  15. Find the sum of the series tan^(-1) 1/2+tan^(-1) 1/8+tan^(-1) 1/18+t...

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  16. If the sum sum(n=1)^10 sum(m=1)^10 tan^(-1) (m/n) = k pi, find the va...

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  17. Find the value of tan { 1/2 sin^(-1) ((2x)/(1+x^(2))) + 1/2 cos^(-1...

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  18. If alpha=2 arc t a n((1+x)/(1-x)) in B=a r c s i n((1-x^2)/(1+x^2))...

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  19. Let y = sin^-1 (sin8) - tan^-1(tan 10) + cos^(-1) '(cos12)-sec^(-1) (...

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  20. Let u = cot^(-1) sqrt(cos 2 theta) - tan^(-1) sqrt( cos 2 theta) , ...

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