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

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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