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if p(x)=x^3-3x^2-9x+c has a double zero, find c.

10 people go to a restaurant. If they sit at a circular table, find the probability of darren and samantha (2 of the people) sitting together if it is known that fred and ethel (2 others) are sitting together at the table. thank you!

can someone please explain how to do this - the highest point of the trajectory of a body is 300m and its horizontal range is 5000m. Find the initial velocity and angle of projection. thank you!

can someone pls tell me how to do these? thanks in advance :) 1. if In = the integral of (a2-x2)ndx betweeen a and 0, show In = [(2a2n)/(2n+1)](In-1) for n is greater than 1 2. if In=integral of (sinnx)(cos2x)dx between a and 0 for n is greater than zerp, show In=(n-1)/(n+2)In-2 ​for n is...

how do you integrate 7^(2x+1) ?

if you have a polynomial that is monic, has degree 4, has rational coefficients, is even and has a zero at -1+31/2, how do you figure out what it is? thanks :)

how do you integrate cube root of(sinx.cos^3x) thanks :)

how do you integate sqrt (x)/1+x as a definite integral between 1 and zero, and with the substition x=tan^2(theta) thank you! :)

in a motor with a split ring commutator, is it correct to say that the magnitude of the force on the coil is constant (because of F=BILsintheta) and sintheta is always equal to 1, but the direction of the force changes. Also, is it correct to say that the magnitude of the torque changes because...

how do you integrate 10/[(x-1)(x2+9)] ? thanks in advance :)

how do you integrate: sin2x/[2+sin2x] cotx between limits, pi/6 and pi/4 thank you :)

A textbook I'm reading says this: Because the Earth has a slightly larger radius near the equator than at the poles (the ‘equatorial bulge’), g is slightly lower at the equator. Except at the poles, there is an additional (fictitious) decrease in g measurements that gets more severe as one...