The student B simplified the expression incorrectly the solution for the student B will be [tex]Sin^2 \theta[/tex]
What is trigonometry?
The branch of mathematics dealing with the relations of the sides and angles of triangles and with the relevant functions of any angles.
Correct Solution for the student B will be:
[tex]=\dfrac{\dfrac{1}{Cos \theta}-Cos\theta}{sec\theta}[/tex]
[tex]=\dfrac{\dfrac{1-Cos^2\theta}{Cos\theta}}{ \dfrac{1}{Cos\theta}}[/tex]
[tex]=1-Cos^2\theta[/tex]
[tex]=Sin^2\theta[/tex]
Hence the student B simplified the expression incorrectly the solution for the student B will be [tex]Sin^2 \theta[/tex]
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