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The number of natural numbers less than 7,000 which can be formed by using the digits 0, 1, 3, 7, 9 (repetition of digits allowed) is equal to

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JEE MAINS PREVIOUS YEAR ENGLISH-JEE MAINS-All Questions
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  2. If sum(i=1)^n(xi+1)^2=9n and sum(i=1)^n(xi-1)^2=5n, then standard devi...

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  3. The number of natural numbers less than 7,000 which can be formed by u...

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  4. An urn contains 5 red and 2 green balls, one ball is chosen from urn. ...

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  5. Find sum of first 15 term of series 1+6+(9(1^2+2^2+3^2))/7+(12(1^2+2^2...

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  6. Let z(0) be a root of the quadratic equation x^(2) + x + 1 = 0. If z =...

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  8. int(0)^((pi)/(3))(tanx)/(sqrt(2ksecx))dx=1-(1)/(sqrt2), then value of ...

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  9. Find number of solution of equation sinx-sin2x+sin3x=0 in 0lexle(pi)/(...

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  10. Find area enclosed by curve 0leylex|x|+1 between -1lexle1 (a) ...

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  11. Find the value of lim(xrarr0)(x(([x]+|x|)sin[x]))/(|x|). (a) -...

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  12. Let y=y(x) is a solution of (dy)/(dx)=f(x) where f(xy)=f(x)f(y) AA x,y...

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  13. If A(4,-4) and B(9,6) lies on y^2=4x and a point C on arc AOB(O= ori...

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  14. If the circles x^2+y^2-16x-20y+164=r^2 and (x-4)^2+(y-7)^2=36 intersec...

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  15. Find the eccetricity of hyperbola through (4,2) whose centre is (0,0)...

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  16. If x=3tant and y=3sect then find (d^2y)/(dx^2) at x=(pi)/(4) (...

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  17. Let A={x:xepsilonR-{1}}f is defined from ArarrR as f(x)=(2x)/(x-1) the...

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  18. Let a,b,c are 7^(th), 11^(th) and 13^(th) terms of constant A.P if a,b...

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  19. Let real and distinct roots of equation x^2-mx+4=0 lies in [1,5] then ...

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  20. If x=sin^-1(sin10) and y=cos^(-1)(cos10), then the value of (y-x) is ...

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