kareempickett1p3499h
kareempickett1p3499h kareempickett1p3499h
  • 20-12-2019
  • Mathematics
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ERROR ANALYSIS need answer in a least a hour or so please help,what is the error​

ERROR ANALYSIS need answer in a least a hour or so please helpwhat is the error class=

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devishri1977
devishri1977 devishri1977
  • 20-12-2019

Answer:

Step-by-step explanation:

1) Sin² Ф = 1 - cos² Ф

So, 1 - Sin² Ф = 1 - (1 - cos² Ф)

                     = 1 - 1 + cos² Ф = cos² Ф

2) tan x = Sin x /Cos x

tan x * csc x = Sin x /Cos x  * 1/Sin x = Sinx  * 1 / cos x  * sin x

                        =1/cos x = Sec x

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