Mathematics
03.01.2020 01:13
154
407
10
suicune19
4,8(96 marks)
Step-by-step explanation:
15 x 3 = 45
13 x 3 = 39
So
45 ÷ 3 = 15
39 ÷ 3 = 13
36 ÷ 3 = 12
X=12
gmaxgaming88
4,8(7 marks)
No
Step-by-step explanation:
cosx = siny only if x = y = 45°
Otherwise
cosx° = sin(90 - x)°
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