配套习题-换底公式及应用 -【青果学院】

本课配套习题挑战模式1/4

返回课程

单选题

难度系数：

1.

（）

A: 1

B: 2

C: 3

D: 4

提示1：IOeUseaNouW6leWFrOW8j+eahOaOqOiuujxpbWcgd2lkdGg9MTIyIGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzBFLzlFL3JCQUNGRlFmY1ppaXpZRDRBQUFEQ0VVUGxRODc5MC5wbmciPu+8jOWPr+S7peefpemBkzxpbWcgd2lkdGg9MTM4IGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzFBLzgzL3JCQUNFMVFmY1ptakNtUjFBQUFDc1h6UVU1TTMwMy5wbmciPg==
答案：QQ==
6Kej5p6Q77ya55Sx5YWs5byP77yaPGltZyB3aWR0aD0xMjIgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMEUvOUUvckJBQ0ZGUWZjWmlpellENEFBQURDRVVQbFE4NzkwLnBuZyI+77yM5Y+v5Lul55+l6YGTPGltZyB3aWR0aD0xMzkgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMUEvODMvckJBQ0UxUWZjWm1nVUNfZEFBQUMyYjA3Yng4MDc0LnBuZyI+LDxicj7miYDku6U8aW1nIHdpZHRoPTEzOCBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC8xQS84My9yQkFDRTFRZmNabWpDbVIxQUFBQ3NYelFVNU0zMDMucG5nIj4=

本课配套习题挑战模式2/4

返回课程

单选题

难度系数：

2.

的值为（）

A:

B:

C:

D:

提示1：IOeUseaNouW6leWFrOW8j+eahOaOqOiuuuWPr+efpe+8mjxpbWcgd2lkdGg9MTU1IGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzFBLzgzL3JCQUNFMVFmY2FIaEFlTHlBQUFEU2FXTjcxbzA0Ny5wbmciPizlj6/nn6UsPGltZyB3aWR0aD0xNDYgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMEUvOUUvckJBQ0ZGUWZjYUdRcUJTR0FBQUNfQXhpbFo0MDE5LnBuZyI+PGltZyB3aWR0aD03OCBoZWlnaHQ9NjIgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC8wRS85RS9yQkFDRkZRZmNhSEJUM3lVQUFBQ2VWNWxkNW81OTYucG5nIj4=
答案：RA==
6Kej5p6QOiDnlLHmjaLlupXlhazlvI/nmoTmjqjorrrlj6/nn6XvvJo8aW1nIHdpZHRoPTE1NSBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC8xQS84My9yQkFDRTFRZmNhSGhBZUx5QUFBRFNhV043MW8wNDcucG5nIj4s5Y+v55+lLDxpbWcgd2lkdGg9MTQ2IGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzBFLzlFL3JCQUNGRlFmY2FHUXFCU0dBQUFDX0F4aWxaNDAxOS5wbmciPjxpbWcgd2lkdGg9MTEzIGhlaWdodD02MiBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwLzFBLzgzL3JCQUNFMVFmY2FHVGJZTVdBQUFDMlVOQ3NkNDg4Ny5wbmciPg==

本课配套习题挑战模式3/4

返回课程

单选题

难度系数：

3.若lg5=a，lg7=b，则log₅7=()

A:

B:

C:

D:

提示1：IOagueaNruaNouW6leWFrOW8j++8mjxpbWcgd2lkdGg9MTI5IGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzFBLzg0L3JCQUNFMVFmY2FfaEVJRGhBQUFEdGxYR05oNDQyMS5wbmciPuWPr+efpe+8jDxpbWcgd2lkdGg9MTA0IGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwLzBFLzlFL3JCQUNGRlFmY2JDRHE5eElBQUFDLXdSZVZzQTg1NS5wbmciPg==
答案：RA==
6Kej5p6Q77ya5qC55o2u5o2i5bqV5YWs5byP77yaPGltZyB3aWR0aD0xMjkgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMUEvODQvckJBQ0UxUWZjYV9oRUlEaEFBQUR0bFhHTmg0NDIxLnBuZyI+5Y+v55+l77yMPGltZyB3aWR0aD0xMDQgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvMEUvOUUvckJBQ0ZGUWZjYkNEcTl4SUFBQUMtd1JlVnNBODU1LnBuZyI+

本课配套习题挑战模式4/4

返回课程

单选题

难度系数：

4.设3^a=4^b=m，且

=2，则m=( )

A: 12

B: 2

C: 4

D: 48

提示1：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
提示2：PGltZyB3aWR0aD0yODIgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMEUvOUUvckJBQ0ZGUWZjYnFnUFpyakFBQUQxblFCN1FJNTY3LnBuZyI+5omA5Lul77yaPGltZyB3aWR0aD03MyBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC8wRS85RS9yQkFDRkZRZmNicVM0c2E1QUFBQi1sUlFYbkU2ODQucG5nIj5t5L2c5Li65a+55pWw55qE55yf5pWw5ZKM5bqV5pWw6YO96KaB5aSn5LqOMO+8jOaJgOS7pW09PGltZyB3aWR0aD0yOCBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC8xQS84NC9yQkFDRTFRZmNiclJpMUhFQUFBQm9DMEYzUkE3NDUucG5nIj4=
答案：Qg==
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

中学生网络课堂

本课配套习题挑战模式1/4

本课配套习题挑战模式2/4

本课配套习题挑战模式3/4

本课配套习题挑战模式4/4

青果学院课程

联系方式