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Is 7^5xx3^2xx5+3 a composite number? Jus...

Is `7^5xx3^2xx5+3` a composite number? Justify the answer.

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R G PUBLICATION-MODEL PAPER 1-EXERCISE
  1. The value of sin^2 30^@-cos^2 30^@ is:

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  2. The median of a given frequency distribution is found with the help of...

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  3. Is 7^5xx3^2xx5+3 a composite number? Justify the answer.

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  4. Find the zeroes of the polynomial 4sqrt3x^2-5x-2sqrt3.

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  5. If the zeroes of the polynomial x^2-5x+k are the reciprocal of each ot...

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  6. Three angles of a triangle are x,y and 40^@. The difference between th...

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  7. Prove that cosA/(1+sinA)+(1+sinA)/cosA=2secA.

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  8. If A,B,C are the interior angles of ABC, then prove that cos((A+B)/2)=...

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  9. Prove that sqrt5 is irrational.

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  10. If alpha and beta are the two zeroes of the quadratic polynomial x^2-3...

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  11. Prove that (1-sintheta)/(1+sintheta)=(sectheta-tantheta)^2.

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  12. Prove that in a right traiangle, the square of the hypotemuse is equal...

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  13. Show that any positive even integer is of the form 6q, 6q+2 ,6q+4.

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  14. In the figure ,DeltaABC is right angles at B, BC=7cm and AC-AB=1cm. Fi...

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  15. In figure D,E,F are midpoints of sides BC,CA,AB respectively of DeltaA...

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  16. Find the coordinates of a point A,where AB is the diameter of a circle...

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  17. 2 cubes each of volume 64cm^3 are joined end to end.Find the surface a...

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  18. Prove that parallelogram circumscribing a circle is a rhombus.

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  19. In what ratio does the x-axis divide the line segment joining the poin...

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  20. If all the sides of a parallelogram touch a circle, show that the para...

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