BAM FORM 5 – CALCULATING DEVICES

SCIENTIFIC CALCULATORS

EXAMPLES

Use a non programmable calculator to find the value of

1.       

          2.    

           3.   

 
 

Solutions

1.   

          

             =

                               = 3.5948

2.     

       

      

                                            

             

               = 2.254

3.

Since  = 180⁰

 

 

=

= 0.1773.

 
 

Exercise

Use non – programmable calculator to calculate

 1  

 2.
3.    

4.     

Solutions

1.   

       = 7.2023

 2.  

       

                 = 0.6097

 3.   

            47′ = 47  60 min

                  = 0.7833

            13′ = 13  60 min

                  = 0.2167

Sin 42⁰47′ = Sin(0.78333 + 42)

                   = sin 42.7833

Cos 42⁰47’= Cos (0.7833+42)
                    =Cos 42.7833
∴Cos 42⁰47’=0.7339
Tan 58°13’=Tan 58+0.2167
Tan 58.2167=1.6139
           

              = 

               = 0.3161

4.

 

      =                                                       

       =  -0.3999