katrinanuez
27.06.2019 •
Mathematics
Find the exact value of sin 165° by using a sum or difference formula
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Ответ:
765238725478629038640962136509762139056074
step-by-step explanation:
64087235609746097215074621039754021037
Ответ:
option d.
step-by-step explanation:
if two triangles δabc and δa'b'c' are similar then we take point c of δabc to find the transformation performed form c to c'.
coordinates of c are (0, 3) and the coordinates of c' are (0, -1).
this shows that c is rotated 180° about origin to get the new coordinates as (0, -3) and then new coordinates were dilated by 1/3 which forms c' as (0, -1)
therefore option d is the correct option.