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In the following figure , AD bot BC, A...

In the following figure ,
`AD bot BC, AC = 26, CD = 10 , BC = 42, angleDAC = x and angleB =y`
Find the vlaue of :
`6/(cosx)-5/(cosy)+8tan y.`

Text Solution

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The correct Answer is:
`6(1)/4`
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ICSE-TRIGONOMETRICAL RATIOS -EXERCISE 22(A)
  1. Given : sec A= (29)/21 , evaluate : sin A-1/(tanA)

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  2. Given : tan A=4/3 , find : ("cosec"A)/(cot A- secA)

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  3. Given : 4 cot A = 3 , find : sinA

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  4. Given : 4 cot A = 3 , find : sec A

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  5. Given : 4 cot A = 3 , find : "cosec"^2A - cot^2A

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  6. Given : cos A = 0.6 , find all other trigono- metrical ratios for angl...

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  7. In a right - angled triangle , it is given that A is an acute angle an...

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  8. In a right - angled triangle , it is given that A is an acute angle an...

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  9. In a right - angled triangle , it is given that A is an acute angle an...

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  10. Given : sin theta = p/q , find cos theta + sin theta in terms of p an...

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  11. If cos A=1/2 and sin B =1/sqrt2 , find the value of : (tanA-tanB)/(1+t...

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  12. If 5 cot theta =12 , find the value of : "cosec" theta + sec theta

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  13. If tan x =1(1)/3 , find the value of : 4 sin^2x -3 cos^2x +2

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  14. If "cosec" theta = sqrt5 , find the value of : 2-sin^2theta - cos^2 ...

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  15. If "cosec" theta = sqrt5 , find the value of : 2+1/(sin^2theta)-(cos...

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  16. If sec A = sqrt2 , find the value of : (3 cos^2 A+5 tan^2A)/(4 tan^2...

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  17. If cot theta = 1 , find the value of : 5 tan^2 theta + 2 sin^2 theta...

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  18. In the following figure , AD bot BC, AC = 26, CD = 10 , BC = 42, ang...

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  19. In the following figure , AD bot BC, AC = 26, CD = 10 , BC = 42, ang...

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  20. In the following figure , AD bot BC, AC = 26, CD = 10 , BC = 42, ang...

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