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3 years ago

Prove that

Mathematics

2 answers:

aivan3 [116]3 years ago

4 0

There is a negative 1/sin(a) and a positive 1/sin(a), so we can cancel both of them out.

We have

1/csc(a) - cot(a) = -1/csc(a) + cot(a) remaining.

One is positive, and one is negative, and they are both equal, so we can also cancel each of them out.

We have

0 = 0 left.

0 equals 0, so we are done explaining.

Hope this helped

SOVA2 [1]3 years ago

3 0

Answer:

Refer to the attachment,

Step-by-step explanation:

If there is any more problem in the picture, feel free to comment and let me know.

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Help, please. Find the value of the blue dot on the number line

REY [17]

-19
Explanation: they go back in intervals of -3

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4 years ago

What’s the answer to 4x+3=15

Anastasy [175]

Answer: 4.500

Step-by-step explanation:

4x - 18 = 2 • (2x - 9)

2 = 0

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2x = 9

x = 9/2 = 4.500

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4 years ago

Consider the expression 21 - + ).

kogti [31]

Subtraction is. Pemdas. Whichever comes first left to right is what you should do. In this case subtraction comes before addition, therefore subtraction is the right route

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2 years ago

The manager of the commercial mortgage department of a large bank has collected data during the past two years concerning the nu

ZanzabumX [31]

The expected number of mortgages approved per week and the standard deviation of the distribution are 2.019 and 0.024 respectively.

The expected number of mortgages approved per week :

Mean = (Σfx ÷ Σf)

Expected Number approved = 210 ÷ 104 = 2.019

Hence, it is expected that 2.019 mortageahes would be approved per week.

The standard deviation :

Variance = [Σ(Xi - x)² ÷ Σf]

Standard deviation = √Variance

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Standard deviation = √0.0005698

Standard deviation = 0.024

Therefore, the expected value and standard deviation are 2.019 and 0.024 respectively.

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3 0

2 years ago

The x co-ordinate of any point lying on the Y axis is: please help urgent

olchik [2.2K]

Answer:

x-coordinate = 0

Step-by-step explanation:

In a coordinate plan there are two perpendicular lines one is x-axis and another is y-axis

x-axis is a horizontal line and y-axis is a vertical line.

Both lines intersect each other at (0,0).

On x-axis, y-coordinate remains same , i.e., y=0.

On y-axis, x-coordinate remains same , i.e., x=0.

Therefore, the x co-ordinate of any point lying on the y axis is 0.

8 0

3 years ago