Xét tính đồng biến nghịch biến của hàm số:y=-x^4-2x^2+5
1 answer:
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Answer:
RM = 12 cm
Step-by-step explanation:
Assuming 20 is the hypotenuse cus there is no picture:
If It's not the hypotenuse:
But I find it unlikely that 20 wasn't the hypotenuse so ignore that unless it applies.
Hope this helped. :0)
