Multiply;then use fundamental identities to simplify the expression below and determine which of the following is not equivalent. $( \cot x + 1 ) ^ { 2 }$
A) $\cot ^ { 2 } x + 1$
B) $\cot ^ { 2 } x + 2 \cot x$
C) $\cot ^ { 2 } x + 2 \cot x + 1$
D) $\csc ^ { 2 } x ( 1 + 2 \sin x \cos x )$
E) $\frac { 1 + 2 \sin x \cos x } { \sin ^ { 2 } x }$

Question

Multiply;then use fundamental identities to simplify the expression below and determine which of the following is not equivalent.​ $( \cot x + 1 ) ^ { 2 }$
A)​ $\cot ^ { 2 } x + 1$
B)​ $\cot ^ { 2 } x + 2 \cot x$
C)​ $\cot ^ { 2 } x + 2 \cot x + 1$
D)​ $\csc ^ { 2 } x ( 1 + 2 \sin x \cos x )$
E)​ $\frac { 1 + 2 \sin x \cos x } { \sin ^ { 2 } x }$

Quizplus · Accepted Answer

The Answer of Multiply;then use fundamental identities to simplify the expression below and determine which of the following is not equivalent.​ $( \cot x + 1 ) ^ { 2 }$
A)​ $\cot ^ { 2 } x + 1$
B)​ $\cot ^ { 2 } x + 2 \cot x$
C)​ $\cot ^ { 2 } x + 2 \cot x + 1$
D)​ $\csc ^ { 2 } x ( 1 + 2 \sin x \cos x )$
E)​ $\frac { 1 + 2 \sin x \cos x } { \sin ^ { 2 } x }$

Multiply;then Use Fundamental Identities to Simplify the Expression Below and Determine