Господин Экзамен
Общий знаменатель cos(pi)/7*cos(pi)/42-sin(pi)/7*sin(pi)/42
Решение
Вы ввели
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cos(pi)*cos(pi) sin(pi)*sin(pi)
--------------- - ---------------
7*42 7*42
$$- \frac{\sin{\left(\pi \right)} \sin{\left(\pi \right)}}{7 \cdot 42} + \frac{\cos{\left(\pi \right)} \cos{\left(\pi \right)}}{7 \cdot 42}$$
cos(pi)*cos(pi)/(7*42) - sin(pi)*sin(pi)/(7*42)
Степени
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1/294
$$\frac{1}{294}$$
2 2
sin (pi) cos (pi)
- -------- + --------
294 294
$$- \frac{\sin^{2}{\left(\pi \right)}}{294} + \frac{\cos^{2}{\left(\pi \right)}}{294}$$
-sin(pi)^2/294 + cos(pi)^2/294
Общий знаменатель
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2 2
sin (pi) cos (pi)
- -------- + --------
294 294
$$- \frac{\sin^{2}{\left(\pi \right)}}{294} + \frac{\cos^{2}{\left(\pi \right)}}{294}$$
-sin(pi)^2/294 + cos(pi)^2/294