2cos2x=y
dy/dx(2cos2x)=-4sin2x
d/du cosu= u'×cos'u=-u'×sinu
d/du sinu= u'×sin'u= u'×cosu
d/du tanu = u'×(1+tan²u)
d/du cotu = u'×-(1+cot²u)
proof for cosu :
cos2x= 1-2sin²x
or 2cosx²-1
or cos²x-sin²x
we will one of this fro example let's take the first one
d/dx 1-2sin²x=0-2×2(sinx)×cosx=-2sin2x
and we have 2 in the begining so its -4sin2x
Answer:
-96
Step-by-step explanation:
When you subtract a positive number from a negative number you add the two numbers together and then make it a negative so 44 + 52 = 96 then you make it a negative so it will be <u>-96.</u>
Hope this helps!!
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It would be 22cm because 5+4+4+4+5=22
Step-by-step explanation:
1024 bytes = 1 kb
n kb = 1024 × n b
Where n is a positive number
Answer:
x=11
Step-by-step explanation: