(1+ cosx)2 + sin2x | 2 + 2cosx | |||
a) ... = | = | = | ||
sinx(1+cosx) | sinx(1+cosx) |
2(1+cosx) | 2 | |||
= | = | |||
sinx(1+cosx) | sinx |
cos2x | ||
b) ... = tg2xctg2x − sin2x* | = 1 − cos2x = sin2x | |
sin2x |
(1+sinx)(1−sinx) | 1 − sin2x | cos2x | ||||
c) ... = | = | = | = cosx | |||
cosx | cosx | cosx |
5^2 | 52 |
2^{10} | 210 |
a_2 | a2 |
a_{25} | a25 |
p{2} | √2 |
p{81} | √81 |
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