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Evaluate the integral.
∫y²4yy

a. -14y²co4y+1/2y4y+1/2co4y+
b. 1/4y²co4y-1/thetay4y-1/32co4y+c
c. -1/4y²co4y+1/8y4y+1/32co4y+
d. -1/4y²4y+1/8yco4y+1/324y+