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If x= (sqrt7+sqrt3)/(sqrt7-sqrt3) and xy...

If `x= (sqrt7+sqrt3)/(sqrt7-sqrt3)` and xy = 1, find the value of `(x^2+3xy+y^2)/(x^2-3xy+y^2)`

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UNITED BOOK HOUSE-VIDYASAGAR VIDYAPITH MIDNAPORE-EXERCISE
  1. Solve : (x+3)/(x-3)+(x-3)/(x+3)= 2 1/2,x!=+-3.

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  2. The spedd of a boat in still water is 8 km/hr. if the boat can go 15...

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  3. If x= (sqrt7+sqrt3)/(sqrt7-sqrt3) and xy = 1, find the value of (x^2+3...

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  4. If 5 men can cultivate om 10 bighas of land in 9 days, calculate by t...

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  5. If a,b,c,d are in continued proportion then show that (b-c)^2+(c-a)^2+...

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  6. If (x^2-yz)/a=(y^2-zx)/b=(z^2-xy)/c , show that (a+b+c)(x+y+z)=(ax+by...

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  7. Prove that the front angle formed at the centre of a circle by an arc,...

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  8. State and Prove Pythagoras theorem.

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  9. ABCD is a cyclic quadrilaterla. Extended AB and DC intersect at P. Pr...

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  10. Two chords AB and AC of the larger of two concentrci circles touch the...

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  11. Draw a square whose length of each side is sqrt(24) cm. Calculate its ...

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  12. Draw a right angled triangle length of hypotenuse and one of another s...

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  13. The length of radius of a circle is 28 cm. Determine the circular val...

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  14. If 5 sin^2 theta+4 cos^2 theta = 9/2 , find the value of tan theta.

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  15. Find the value of cot 12^@ cot38^@cot 52^@cot78^@cot60^@.

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  16. A man standing on a railway overbirdge of 5sqrt3 m height observed th...

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  17. If the angle of depression of two consecute kilometer stones on a road...

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  18. There sphere made of copper having the lengths of 3cm, 4 cm and 5 cm r...

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  19. Answer any two questions : Determine the volume of a solid right circu...

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  20. Height of a right circular cylinder is twice of its radius. If the hei...

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