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Calculate the condition on the real parameter k so that the two vectors a equal(1,0,k)&b(-1,k,k)are pendicular. pls help? F(x)= (sin(a+1)x + sinx)/x; x<0 and c; x=0 and (root(x+bx^2)- rootx)/b rootx^3; x>0. Find the values of a,b and c? If you could be any animal, what animal would it be? Can mechanical engineers create missiles, especially artillery? If $2^{10}+2^{10} = 2^x$, what's $x$?