Question

evaluate sin square 60 degree + 2 tan 45 degree minus cos square 30 degree​

Answer 1

Answer:

Step-by-step explanation: now the question was:

Sin^2(60°)+tan(45°) - Cos^2(30°)

Here is the solution:

Sin^2(60°)= (√3/2)^2 tan45°= 1 while

Cos(30°) is equal to √3/2

So let's replace the values to the original question:

(√3/2)^2 + 1 - √3/2

= 3/4+1-√3/2

= 7/4 - √3/2

Finally: (7-2√3)/4 or I can say:

7/4 - 2√3/4 which is equal finally: "7/4 - √3/2" that's all in all . I think this is excellent & helped you !

Answer 2

Answer:

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