If sec x = -2 and x is an angle in the second quadrant find tangent
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The expression 
has two similar pairs of <span>conjunctions.
</span>
1. Rewrite this expression as
and then
2. add the similar <span>conjunctions
</span><span>
</span><span>
.</span><span>
</span><span />
</span>
1. Rewrite this expression as
and then
2. add the similar <span>conjunctions
</span><span>
</span><span>
</span><span />