How do you find the exact value of sin 45 degrees? - Socratic
2018年3月28日 · Consider #\triangle ABC# to be right-angled in #B# and choose #\angle BCA# such that its measure is #45^o#. Since the triangle is isosceles, we can deduce that angle …
What is #tan(45)#, #sin(45)# and #cos(45)#? - Socratic
2017年11月17日 · tan(45^@)=1 sin(45^@)=sqrt2/2 cos(45^@)=sqrt2/2 45^@ is a special angle, along with 30^@, 60^@, 90^@, 180^@, 270^@, 360^@. tan(45^@)=1 sin(45^@)=sqrt2/2 …
Sine (45 + x )? - Socratic
2018年3月31日 · Use the #sin# angle addition formula:. #sin(color(red)A+color(blue)B)=sincolor(red)Acoscolor(blue)B+coscolor(red)Asincolor(blue)B#
How do you evaluate #sin45°#? - Socratic
2015年7月31日 · sin(45^o)=sqrt(2)/2~~0.7071... An angle of 45^o is an angle in the right triangle with equal catheti because another acute angel must be 45^o as well..
What is the exact value of #sin (45 + 30)#? - Socratic
2018年3月12日 · #sin(alpha+beta) = sin alpha cos beta + cos alpha sin beta# and assuming the angles are expressed in degrees: #sin(45°+30°) = sin 45° cos 30° + cos 45°sin 30°#
How do you find the 6 trigonometric functions for 225 degrees?
2015年8月23日 · Find 6 trig functions of 225 deg sin 225 = sin (45 + 180) = - sin 45 = -sqrt2/2 cos 225 = cos (45 + 180) = - cos 45 = -sqrt2/2 tan 225 = sin 225/cos 225 = 1 cot 225 = 1/tan 225 = …
How do you solve #sin(105^@)=sin(60^@+45^@)#? - Socratic
2017年12月7日 · Use the identity sin(A+B) = sin(A)cos(B)+cos(A)sin(B). The values for the sine and cosine of 60^@ and 45^@ are well known; use them to simplify the result. Given: …
How do you evaluate #Sin (165)#? - Socratic
2016年9月29日 · What is the value of #sin -45^@#? How do you find the trigonometric functions of values that are greater than #360^@#? How do you use the reference angles to find …
What is the sin cos and tan of 45? - Socratic
2018年3月10日 · What is the sin cos and tan of 45? Trigonometry Right Triangles Trigonometric Functions of Any Angle. 1 ...
How do you simplify cos(45^@+a)cos(45^@-a)-sin(45
2018年5月10日 · 0 Yes, it simplifies to give you zero. Now to make our lives easier, it would be better to turn the equation to: cos(45+a)cos(45-a) = sin(45-a)sin(45+a) This way we can …