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What is the exact value of the expression?

 

tan(π3)+ cos(5π6) · sin(−3π/4)

 
 Feb 23, 2021
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sin pi/3  =  sqrt 3/2

cos pi/3 = 1/2                      so tan pi/3 = sqrt 3

 

cos 5pi/6 =  - sqrt3/2

 

                       sqrt 3  - sqrt3/2  = sqrt 3/ 2

 

sqrt3 /2 * -sqrt2/2 =  - sqrt 6  / 4

 
 Feb 23, 2021

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