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viva [34]
3 years ago
13

Anwser true or false

Mathematics
2 answers:
adelina 88 [10]3 years ago
7 0
He is incorrect so true.
maxonik [38]3 years ago
3 0
The first answer would be false!
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Is square root 1 minus sine squared theta = cos Θ true? If so, in which quadrants does angle Θ terminate?
Cloud [144]

Answer:

True; quadrants I & IV

Step-by-step explanation:

We know the relation between sine and cosine function which is given by

\sin^2 \theta +\cos^2 \theta = 1

Let us solve this equation for cosine function.

\cos^2 \theta = 1-\sin^2 \theta

Take square root both sides. When ever we take square root we need to write the solution in plus minus form

\sqrt{\cos^2 \theta}=\pm\sqrt{1-\sin^2 \theta}

\cos \theta=\pm\sqrt{1-\sin^2 \theta}

\cos \theta=-\sqrt{1-\sin^2 \theta}, \sqrt{1-\sin^2 \theta}

If Θ is in quadrants I and IV then the value will be positive and if Θ is in II and III quadrant then the value is negative.

Hence, if Θ is in quadrants I & IV, then we have

\cos \theta=\sqrt{1-\sin^2 \theta}

Thus, the correct option is: True; quadrants I & IV


6 0
3 years ago
Read 2 more answers
What is the sum? StartFraction 3 Over x squared minus 9 EndFraction + StartFraction 5 Over x + 3 EndFraction
Karolina [17]

Answer:

The answer is:

\frac{5 x - 12}{(x + 3)(x - 3)}

Step-by-step explanation:

\frac{3}{x ^{2}  - 9}  +  \frac{5}{x + 3}

First, we have to make the denorminator same by multiplying:

\frac{3}{(x + 3)(x - 3)}  +  \frac{5}{x + 3}

\frac{3}{(x + 3)(x - 3)}  +  \frac{5(x - 3)}{(x + 3)(x - 3)}

Then, we can add up everything together:

\frac{3 + 5x - 15}{(x + 3(x - 3)}

\frac{5x - 12}{(x + 3)(x - 3)}

(Sorry if being messy)

8 0
3 years ago
Read 2 more answers
26cm/s=how many m/min
zepelin [54]
26 cm/s equals to 15.6 m/min
4 0
3 years ago
SOLVE THIS PROBLEM ASAP PLS
fredd [130]

Answer:

2/8 chance of landing on A

Step-by-step explanation:

4 0
3 years ago
Pleeeaaaasssse help
Mars2501 [29]

Answer:

Number of miles is either less than 8255.25 or greater than 17255.25.

Step-by-step explanation:

Given that :

Difference in mileage of the sedan and minivan is > 4500

Mikeage of minivan = 12755.25

Possible number of miles on the sedan :

Mileage on minvan ± difference in mileage ;

12755.25 ± 4500

12755.25 + 4500 = 17255.25

12755.25 - 4500 = 8255.25

This means that the possible number of miles on the sedan is either greater than 17255.25 OR less Than 8255.25

8 0
2 years ago
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