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In DeltaABC, angleB=90^@), AB=y" units",...

In `DeltaABC, angleB=90^@), AB=y" units", BC=sqrt(3) " units"`, AC = 2 units and angle `A=x^(@)`, find :
`tanx^(@)`

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To solve the problem, we will analyze the triangle ABC with the given information and find the value of \( \tan x^\circ \). ### Step-by-Step Solution: 1. **Identify the Triangle Configuration**: - We have a right triangle \( \Delta ABC \) where \( \angle B = 90^\circ \). - The sides are given as follows: \( AB = y \) units, \( BC = \sqrt{3} \) units, and \( AC = 2 \) units. 2. **Label the Triangle**: - Let \( A \) be at the top, \( B \) at the right angle, and \( C \) at the bottom left. - Thus, \( AB \) is the opposite side to angle \( A \), \( BC \) is the adjacent side to angle \( A \), and \( AC \) is the hypotenuse. 3. **Use the Pythagorean Theorem**: - According to the Pythagorean theorem, in a right triangle: \[ AC^2 = AB^2 + BC^2 \] - Substituting the known values: \[ 2^2 = y^2 + (\sqrt{3})^2 \] \[ 4 = y^2 + 3 \] - Solving for \( y^2 \): \[ y^2 = 4 - 3 = 1 \implies y = 1 \] 4. **Find \( \tan x^\circ \)**: - The tangent of angle \( A \) (which is \( x^\circ \)) is given by: \[ \tan x^\circ = \frac{\text{opposite}}{\text{adjacent}} = \frac{BC}{AB} = \frac{\sqrt{3}}{1} = \sqrt{3} \] 5. **Conclusion**: - Therefore, the value of \( \tan x^\circ \) is: \[ \tan x^\circ = \sqrt{3} \]
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ICSE-TRIGONOMETRICAL RATIOS OF STANDARD ANGLES-EXERCISE 23(C)
  1. In DeltaABC, angleB=90^@), AB=y" units", BC=sqrt(3) " units", AC = 2 u...

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  2. In DeltaABC, angleB=90^@), AB=y" units", BC=sqrt(3) " units", AC = 2 u...

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  3. In DeltaABC, angleB=90^@), AB=y" units", BC=sqrt(3) " units", AC = 2 u...

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  4. In DeltaABC, angleB=90^@), AB=y" units", BC=sqrt(3) " units", AC = 2 u...

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  5. If 2cos(A+B)=2sin(A-B)=1, find the values of A and B.

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  6. Solve the following equations for A, if : 2sinA=1

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  7. Solve the following equations for A, if : 2cos2A=1

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  8. Solve the following equations for A, if : sin3A=sqrt(3)/2

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  9. Solve the following equations for A, if : sec2A=2

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  10. Solve the following equations for A, if : sqrt(3)tanA=1

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  11. Solve the following equations for A, if : tan3A=1

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  12. Solve the following equations for A, if : 2sin3A=1

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  13. Solve the following equations for A, if : sqrt(3)cot2A=1

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  14. Calculate the value of A, if : (sinA-1)(2cosA-1)=0

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  15. Calculate the value of A, if : (tanA-1)(cosec3A-1)=0

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  16. Calculate the value of A, if : (sec2A-1)(cosec3A-1)=0

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  17. Calculate the value of A, if : cos3A.(2sin2A-1)=0

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  18. Calculate the value of A, if : (cosec2A-2)(cot3A-1)=0

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  19. If 2sinx^(@)-1=0 and x^(@) is an acute angle, find: (i) bsinx^(@)" ...

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  20. If 4cos^(2)x^(@)-1=0 and 0 le x^(@) le 90^(@), find : x^(@)

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