Sin square 45-tan square 30 In addition, there is a 2 sin square 30 °× Tan 30 ° + cos 60 ° Tan 60 °

Sin square 45-tan square 30 In addition, there is a 2 sin square 30 °× Tan 30 ° + cos 60 ° Tan 60 °

Sin 45 ° = √ 2 / 2 sin square 45 ° = 1 / 2
Tan 30 ° = √ 3 / 3 Tan square 30 ° = 1 / 3
Sin square 45 ° - Tan square 30 ° = 1 / 2-1 / 3 = 1 / 6
2Sin square 30 °× Tan 30 ° + cos 60 ° Tan 60 °
=2*(1/2)^2*√3/3+1/2*√3
=√3/6+√3/2
=2√3/3

What's the difference between the square of sin 45 ° and the square of sin 45

There's no square 45 ° of sin, because that's how it's written. It's actually sin (the square of 45 degrees)

It is known that the lengths of the two right angles of a right triangle are respectively 10cm and 20cm, and the length of the hypotenuse is calculated

Simplification: √ (10 & # 178; + 20 & # 178;) = √ 100 + 400 = √ 500 = √ 100 * 5 = 10 √ 5