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In the given figure , ABC in a right - angled triangle , right - angled at B. If BC = 5 cm and AC - AB = 1 cm , find the value of cosec A and cos A .

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The correct Answer is:
cosec A `2(3)/5` and cos A `(12)/13`
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ICSE-TRIGONOMETRICAL RATIOS -EXERCISE 22(B)
  1. In the given figure , ABC in a right - angled triangle , right - angle...

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  2. From the following figure, find : y

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  3. From the following figure, find : sinx^@

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  4. From the following figure, find : (secx^@ - tanx^@) (secx^@+ tanx...

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  5. Use the given figure to find : sinx^@

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  6. Use the given figure to find : cosy^@

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  7. Use the given figure to find : 3 tan^@ - 2 siny^@ + 4 cosy^@

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  8. In the diagram, given below, triangle ABC is right - angled at B and B...

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  9. In the diagram, given below, triangle ABC is right - angled at B and B...

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  10. In the given figure, triangle ABC is right angled at B. D is the foot...

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  11. In the given figure, triangle ABC is right angled at B. D is the foot...

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  12. In triangle ABC, AB = AC = 15 cm and BC = 18 cm, find cos angleABC

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  13. In the figure, given below, ABC is an isosceles triangle with BC = 8 c...

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  14. In the figure, given below, ABC is an isosceles triangle with BC = 8 c...

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  15. In the figure, given below, ABC is an isosceles triangle with BC = 8 c...

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  16. In the figure, given below, ABC is an isosceles triangle with BC = 8 c...

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  17. In triangle ABC , angleABC = 90^@ , angle CAB = x^@ , tan x^@ = 3/4 an...

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  18. Using the measurements given in the following figure : Find the valu...

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  19. Using the measurements given in the following figure : Write an exp...

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  20. In the given figure, BC=15 cm and sin B = 4/5 . Calculate the measu...

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  21. In the given figure, BC=15 cm and sin B = 4/5 . Now, if tan angleAD...

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