September 2018 2 13 Report

PROSZĘ O SZYBKĄ ODPOWIEDZ! ;)

1.Oblicz:

a)ctg(90st.-alfa)*ctg alfa=

b)cos(90st.-alfa)*sin alfa+sin(90st - alfa)*cos alfa=

c)cos(90st-alfa)/cos alfa * sin(90st.- alfa)/sin alfa =

d)tg23st*tg67-2 / sin kwadrat 17 st. +sin kwadrat 73 st=


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