Question 1034535
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Solve each equation by finding the value of x to the nearest degree. 


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1. Arcsin 1 = x.

   They ask you: what is the angle  {{{alpha}}},  if  {{{sin(alpha)}}} = 1 ?
   The answer is:  {{{alpha}}} = 90°.  Or  {{{arcsin(1)}}} = 90°.   Or x = 90°.                


2. Cos^-1 square root 3/2 =x 

   I will rewrite it in this equivalent form:  {{{arccos(sqrt(3)/2)}}} = x

   They ask you: what is the angle  {{{alpha}}}, if  {{{cos(alpha)}}} = {{{sqrt(3)/2}}}.
   The answer is:  {{{alpha}}} = 30°.  Or  {{{arccos(sqrt(3)/2)}}} = 30°.   Or x = 30°.  


3. x= tan^-1 (- squareroot 3/3) 

   I will rewrite it in this equivalent form:  {{{arctan(-sqrt(3)/3)}}} = x

   They ask you: what is the angle  {{{alpha}}}, if  {{{tan(alpha)}}} = {{{-sqrt(3)/3}}}.
   The answer is:  {{{alpha}}} = -60° = 300°.  Or  {{{arctan(-sqrt(3)/3)}}} = -60°.   Or x = -60°.  


Now try to complete the assignment following to the same scheme.


4. x= Arccos sqaureroot 2/2 
5. x= Arctan (-squareroot 3) 
6. Sin^-1= (-1/2)= x 
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