All of the following expressions represent the sum of n and itself, except n² so option (C) will be correct.
An expression is a combination of some mathematical symbol such that arithmetic operator and variable such that all are constrained and create an equation.
In other meaning, expression is very useful to determine the end or root value of constraint.
For example 3x +5y
The constraint of expression is represented as = or <, >.
The expression n + n is the sum of n and n(itself).
The expression 2n = n + n is the sum of n and n(itself).
The expression n² = n × n is the multiplication of two n, not a sum so it will not sum of n and itself.
Hence "All of the following expressions represent the sum of n and itself, except n²".
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62/7
Answer:
23/20
Step-by-step explanation:
Answer:
1.15 correct me If I am wrong
Step-by-step explanation:
To use a unit circle, you must know where the coordinates are.
For this problem it is asking you where the sin(11pi/6) is.
You look at the unit circle for 11pi/6.
From here you look at the coordinates.
The x value is the cosine and the y value is the sine.
This means that the sin of 11pi/6 is -1/2.
To find the csc or the cosecant you just find 1/sin.
To find the the sec or secant you find 1/cos.
To find the tangent or tan you find the sin/cos.
And to find the cot or cotangent you find 1/tan.