BARDZO PROSZĘ O POMOC !!! DAJE NAJ !!!
Uprość wyrażenie( bez liczb ) i następnie oblicz jego wartość, jeśli a= 5/13 i b = -0,12 :
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b^15 a^8 b^8 a^2 * a^5 * b^8 * b^7 a^7 * b^8
... = [ ------------ * a^7 ] : ------------ = --------------------------- : -------------- =
a^2 * b^8 3a a^2 * b^8 3
a^5 * b^7 3 3 * a^5 * b^7 3
-------------- * ------------- = ----------------------------- = -------------
1 a^7 * b^8 1 * a^5 * a^2 * b^7 * b a^2 * b
3 3 3 3
------- = -------------------------- = ------------------------ = -------- = 3 * (-169 / 3) = -169
a^2 * b (5/13)^2 * (-12/100) 25/169 * (-12/100) - 3/169