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The vectors a, b are known to be non-zero vectors, and the module of a = the module of b = the module of a-b, and the angle between vector a and vector a+b is determined
The problem is relatively simple, with vector a, vector b as the adjacent edge of the parallelogram,
Module of a=module of b=module of a-b,
Therefore, vector a, vector b and vector a-b may form an equilateral triangle
A parallelogram is a diamond.
So vector a and vector a+b have an angle of 30 degrees.
Given that vectors a and b are two non-zero vectors, if the module length of vector a = the module length of vector b = the module length of vectors a-b =1, then the angle between vector b and vector a+b is?
The first thing find the angle between two vectors, the first thought is a*b=|a||b|*cosα(a is the angle between vectors a and b, where vectors are not a and b in the title, but a formula).
The first thing to think about the angle between two vectors is a*b=|a||b||b|*cosα(a is the angle between vectors a and b, where vectors are not a and b in the title, but a formula).
A number is added to itself, subtracted, divided, and its sum, difference, and quotient is 18.2. What is this number? Count it. Count it.
(18.2-1)÷2
=17.2÷2
=8.6
When the two numbers are added together, Xiao Ming miscalculates and subtracts. The result is 8.6,10.4 less than the correct answer. The larger number in the original number is ______.
(8.6+10.4+8.6)÷2,
=27.6÷2,
=13.8;
A: The larger number was 13.8.
Therefore, the answer is:13.8.
When Xiao Ming calculates the sum of two numbers, he miscalculates them into two numbers and subtracts them. The result is 5.3. The correct result should be 20.3. When Xiaoming calculates the sum of two numbers, miscalculates the sum of two numbers and subtracts them. The result is 5.3. The correct result should be 20.3. What is the larger number of the two numbers? When Xiaoming calculates the sum of two numbers, miscalculates them into two numbers and subtracts them. The result is 5.3. The correct result should be 20.3. What is the larger number of the two numbers?
12.8
Calculate 24 to add, subtract, multiply and divide by the number 2 3 2 8 Number of components
(2+3-2)*8 =24
2*3/2*8=24
2*3/(2/8)=24
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