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If `(x)` is of the form `f(x)=a+b x+c x^2,` show that `int_0^1f(x)dx=1/6{f(0)+4f(1/2)+f(1)}`

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RD SHARMA ENGLISH-DEFINITE INTEGRALS-All Questions
  1. Evaluate: int0^4 1/(x+sqrt(x))dx (ii) int0^1(2x)/(5x^2+1)dx

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  2. Evaluate the following definite integrals (1-58): int1^2 1/(sqrt((x...

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  3. If (x) is of the form f(x)=a+b x+c x^2, show that int0^1f(x)d...

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  4. Evaluate: int0^oo1/((x^2+a^2)(x^2+b^2))dxdot

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  5. Evaluate the following integrals: int0^(pi//6)cos^(-3)2thetasin2th...

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  6. Evaluate the following integrals: int0^((pi)^(2//3))sqrt(x)cos^2x^(...

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  7. Evaluate the following integrals: int0^1(24x^3)/((1+x^2)^4)dx

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  8. Evaluate the following integrals: int0^1sqrt((1-x)/(1+x))dx

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  9. If In=int0^(pi//4)tan^("n")x dx , prove that In+I(n-2)=1/(n-1)dot

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  10. If In=int0^(pi//4)tan^n x dx , show that 1/(I2+I4),1/(I3+I5),1/(I4+...

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  11. Evaluate: int0^(pi//2)1/((a^2cos^2x+b^2sin^2x)^2)dx

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  12. Find dy/dx if x^2=cosy

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  13. Evaluate: int0^a1/((x^2+a^2))dx (ii) int0^oo(x^2)/((a^2+x^2)^(5//2))dx

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  14. Evaluate: int0^1xsqrt((1-x^2)/(1+x^2))dx

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  15. Evaluate the following integrals: int (sin)^(-1)sqrt(x/(a+x))dx

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  16. Evaluate the following integrals: int1^2 1/(x(1+logx)^2)dx

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  17. Evaluate the following integrals: int0^(pi//4)(sin^2xcos^2x)/((sin...

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  18. Evaluate the following integrals: int0^(pi//2)(tanx)/(1+m^2tan^2x)d...

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  19. Evaluate: int0^1|5x-3|dx (ii) int0^pi|cosx|dx (iii) int(-5)^5|x-2...

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  20. Evaluate: (i) \int(-1)^1f(x)dx ,\where\, f(x)={1-2x ,xlt=0 ;1+2x ,xgt=...

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