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Korolek [52]
3 years ago
9

Determine the sign of cos pi/3 without using a calculator.

Mathematics
1 answer:
andre [41]3 years ago
8 0
Pi/3 is in the first quadrant, and all trigonometric functions are positive in the first quadrant,
Therefore, cos pi/3 is positive.

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Write the following ratio as a fraction in lowest terms 55 to 50
lakkis [162]

Answer:

11/10

Step-by-step explanation:

divide both the terms of 55 & 50 with 5: like this ⬇️

<h3>55/5 = 11</h3><h3>50/5 = 10 </h3>

put it in the fraction form: ⬇️

<h3>                               ans: 11/10 </h3>

I hope this information helps.

8 0
2 years ago
Pls help in a middle of an exam
KIM [24]

Answer:

\frac{2x^2+4x-9}{(2x-3)(2x+3)(x-1)}

Step-by-step explanation:

\frac{2x}{4x^2-9} + \frac{3}{2x^2+x-3} can be simplified to:
\frac{2x}{(2x-3)(2x+3)}+\frac{3}{(2x+3)(x-1)}

Make them have common denominators so:
\frac{(2x)(x-1) +3(2x-3)}{(2x-3)(2x+3)(x-1)}

Simplify:
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I don't think you can simplify that fraction further so that's the answer.

3 0
2 years ago
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