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- Multiply: (5x'y*)(-6x"y*) b. (4x²y'z*)(2r°y°z*). a.Use the trig substitution x=5 sin t, to re-write the square root sign of 25-x^2, without any square root. square root sign of 25-x^2=Integrate √1-x²dx Select one: OA. }(arcsin2+2v1−z)+C O B. =(arcsin+æv1−z)+C OC. (arcsinx+x√1-x²) + C OD. =(@rcsinx+æv1-x)+C