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777dan777 [17]
3 years ago
12

If sinA÷2 =4÷2 find the value of cosA (not by pythagoras theorem)​

Mathematics
1 answer:
Grace [21]3 years ago
6 0

Answer:

Step-by-step explanation:

Sin A ÷ 2 = 2

Sin A = 2×2

Sin A = 4

Cos A = sqrt (1 - Sin ^2 A) = sqrt(1 - 4^2)

Cos A = sqrt(1-16) = sqrt (-15) = sqrt(15i^2)

Cos A = i sqrt(15)

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Tresset [83]

Answer:

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6/3 = 3+ 0.5

The process would be different if some values are the same values already on the chart total of each class.

ie) 20  31  14  22 20 31

small data like this below you can rearrange

14  20  20  22  31 31  

and see that 21 is the correct value

as there are even numbers, so we choose 20 , 22

and select the middle value = 21

Step-by-step explanation:

If there is an even number of numbers locate the two middle numbers so that there is an equal number of values to the left and to the right of these two numbers. Step 3: If there is an odd number of numbers, this middle number is the median. If there is an even number of numbers add the two middles and divide by 2.

7 0
2 years ago
Please help ASAP!!!!!!
OleMash [197]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
Line L pases through Sand R. Determine the slope of L.
mart [117]

Answer:

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Step-by-step explanation:

Hope this helps!

8 0
2 years ago
Which is the graph of the linear inequality y < 3x + 1?
mestny [16]
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5 0
3 years ago
What is the value of the function y=2x−3 when x=−1 ?
san4es73 [151]

Answer:  First option is correct.

Step-by-step explanation:

Since we have given that

y=2x-3

We need to find the value of the function .

As we have given that x= - 1

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y=2x-3\\\\y=2(-1)-3\\\\y=-2-3\\\\y=-5

So, the value of the function is -5.

Hence, First option is correct.


7 0
3 years ago
Read 2 more answers
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