函数y=根号(x^2+2x-24)的单调递减区间是A.(-无穷,-6] B.[-6,+无穷) C.(-无穷,-1] D.[-1,+无穷]

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函数y=根号(x^2+2x-24)的单调递减区间是A.(-无穷,-6]B.[-6,+无穷)C.(-无穷,-1]D.[-1,+无穷]函数y=根号(x^2+2x-24)的单调递减区间是A.(-无穷,-6]

函数y=根号(x^2+2x-24)的单调递减区间是A.(-无穷,-6] B.[-6,+无穷) C.(-无穷,-1] D.[-1,+无穷]
函数y=根号(x^2+2x-24)的单调递减区间是
A.(-无穷,-6] B.[-6,+无穷) C.(-无穷,-1] D.[-1,+无穷]

函数y=根号(x^2+2x-24)的单调递减区间是A.(-无穷,-6] B.[-6,+无穷) C.(-无穷,-1] D.[-1,+无穷]
A.(-无穷,-6]