3 years ago

How do you show 80 degrees in an angle

Mathematics

2 answers:

Karolina [17]3 years ago

5 0

Well a right angle is 90° so all u have to do is take 10° away from that

dusya [7]3 years ago

5 0

If 90 degrees is right angle, so just take 10 degrees away from that.

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${ \sf{( \sec \theta - \csc \theta)(1 + \tan \theta + \cot \theta) }} \\ = { \sf{( \sec \theta + \tan \theta \sec \theta + \cot \theta \sec \theta) - ( \csc \theta - \csc \theta \tan \theta - \csc \theta \cot \theta)}} \\ = { \sf{( \sec \theta + \sec \theta \tan \theta + \csc \theta) - ( \csc \theta - \sec \theta - \csc \theta \cot \theta)}} \\ = { \sf{ \sec \theta \tan \theta + \csc \theta \cot \theta }} \\ { \bf{hence \: proved}}$