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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 :
`x^(@)`

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The correct Answer is:
`60^(@)`
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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 : sin2x

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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