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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 :
`sinx^(@)`

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To solve the problem step by step, we will analyze the triangle ABC with the given information. ### Step 1: Understand the triangle configuration We have a right triangle ABC where: - Angle B = 90° - Side AB = y units (opposite to angle C) - Side BC = √3 units (adjacent to angle A) - Side AC = 2 units (hypotenuse) ### Step 2: Identify the sides in relation to angle A In triangle ABC: - The side opposite angle A (which is angle X) is side BC = √3 units. - The hypotenuse (the side opposite the right angle) is side AC = 2 units. ### Step 3: Write the sine ratio for angle A The sine of angle A (which is X) is defined as the ratio of the length of the side opposite the angle to the length of the hypotenuse. Therefore: \[ \sin A = \frac{\text{Opposite}}{\text{Hypotenuse}} = \frac{BC}{AC} \] ### Step 4: Substitute the known values Now, substituting the known values into the sine ratio: \[ \sin X = \frac{BC}{AC} = \frac{\sqrt{3}}{2} \] ### Step 5: Final answer Thus, the value of \(\sin X\) is: \[ \sin X = \frac{\sqrt{3}}{2} \]
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ICSE-TRIGONOMETRICAL RATIOS OF STANDARD ANGLES-EXERCISE 23(C)
  1. If 4cos^(2)x=3 and x is an acute angle, find the value of : cos3x

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  2. If 4cos^(2)x=3 and x is an acute angle, find the value of : sin2x

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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