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find a value of a in [0,90] that satisfies the given statement sec a = 1.2934292

Guest Jan 29, 2015

Best Answer 

 #1
avatar+93305 
+5

the web2 calc handles this easily

[2nd][sec](1.2934292)

$${asec}{\left({\mathtt{1.293\: \!429\: \!2}}\right)} = {\mathtt{39.363\: \!427\: \!756\: \!281^{\circ}}}$$

 

on othe calcs you often have to do this

 

$$\\sec \theta = 1.2934292\\
cos\theta = 1/1.2934292\\
\theta= cos^{-1}(1/1.2934292)\\$$

 

 

arc cos is the same as inverse cos

Melody  Jan 29, 2015
 #1
avatar+93305 
+5
Best Answer

the web2 calc handles this easily

[2nd][sec](1.2934292)

$${asec}{\left({\mathtt{1.293\: \!429\: \!2}}\right)} = {\mathtt{39.363\: \!427\: \!756\: \!281^{\circ}}}$$

 

on othe calcs you often have to do this

 

$$\\sec \theta = 1.2934292\\
cos\theta = 1/1.2934292\\
\theta= cos^{-1}(1/1.2934292)\\$$

 

 

arc cos is the same as inverse cos

Melody  Jan 29, 2015

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