Esmer1030
02.09.2021 •
Mathematics
PLZZ HELP ASAP ON 1 and 2 THIS DUE TOMORROW I NEED HELP ASAP PLZZZZZ
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Ответ:
z = 6
Step-by-step explanation:
we know that
if sin(A)=cos(B)
then
angle A and angle B are complementary angles
therefore
In this problem
sin(9z − 1) = cos(6z + 1)
then
(9z − 1)+(6z + 1)=90° > by complementary angles
Solve for z
15z=90
z=90/15=6