Question

plzz fast solve problem​

Answer 1

Step-by-step explanation:

The exact value of sin(30)sin(30) is 1212.

12+cos(30)12+cos(30)

The exact value of cos(30)cos(30) is √3232.

12+√3212+32

The result can be shown in multiple forms.

Exact Form:

12+√3212+32

Decimal Form:

1.36602540…1.36602540…

sin(30)+cos(30)sin⁡(30)+cos⁡(30)

cos(30)x2cos⁡(30)x2

+tan(3π4)+tan⁡(3π4)

cos(30)xcos⁡(30)x

Answer 2

Answer:

sin 30∘−cos30∘=12−√32=12(1−√3)

Explanation:

The first time we see the 30/60/90 triangle we can recognize it's half an equilateral triangle and do the

(s2)2+h2=s2

thing to work out the trig ratios. The next hundred thousand times we just remember the results and spit them back out.

Trig mostly uses two triangles, 30/60/90 and 45/45/90 in the various quadrants, so it's not too onerous to memorize the trig functions ...

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