kayltosh2729
22.12.2020 •
Mathematics
What is angle U?
A) 129
B) 42
C) 34
D) 43
Solved
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Ответ:
Step-by-step explanation:
4x+2+95=-7+17x
104=13x
x=8
for angle U=34 degrees
the answer is C
Ответ:
Using x for Θ:
(sinx - cosx)^2 - (sinx + cosx)^2
= (sin^2 x - 2sinxcosx + cos^2 x) - (sin^2 x + 2sinxcosx + cos^2 x)
= - 2 sinx cosx - 2 sinx cosx
= - 4 sinx cosx
= - 2sin(2x)
Step-by-step explanation: