Evaluate without using a calculator.     cos    -1 ( cos 7pi/6)

Q: Use your calculator to evaluate cos(0.36) to at least 3 decimal places. Give the answer.in radians.…

A:

Q: Which expression is equal to cos(6t)?

A: Recall:  cos(2t)=cos2(t)-sin2(t)     Given,   cos(6t)

Q: Evaluate without using a calculator.      cos  (cos    -1 5/13)

A: coscos-1513

Q: evaluate : cos-1(sin(pi/3))

A: Given, cos-1sinπ3

Q: Find the exact value of the expression tan [cos -1 (4/5)]. Do not use a calculator.

A: tan [cos -1 (4/5)] We need to find the exact value of the given function.

Q: Use a calculator to find an approximate value (in radians) of the expression rounded to five decimal…

A:

Q: Use your calculator to evaluate cos '(0.47) to at least 3 decimal places. Give the answer in…

A: Here I am attaching image so that you understand each and every step.

Q: Tan (Cos (-)) Evaluate and give exact answer; 6

A: Given:Tancos-1-32

Q: Evaluate without using a calculator.       sec ( cos  -1 |1/5)

A: Given: seccos-115 we know that  secθ=1cosθ similarly, seccos-115=1coscos-115 we know that…

Q: Evaluate without using a calculator. 7x cos-1(cos X Need Help? Submit Answer Read It

A: Given;  Cos-1[Cos(7pi/4)].

Q: cot A sin 2A =

A: cot(A)sin(2A)=cos(A)sin(A)2sinA.cosAcot(A)sin(2A)=2cos(A).cos(A)cot(A)sin(2A)=2cos2(A).ORcot(A)sin(2…

Q: du O P A Precalculus H » Matthew Granger - Trig3 Test pdf 14. If cos® = -, find cos²0 . cos²0 =,

A: As per our guidelines we are supposed to answer only one question.Kindly repost other question as…

Q: Write an algebraic expression that is equivalent to the given expression. cos(arcsin(5x))

A:

Q: Determine the value of cot⁡ θ if cos⁡ θ= (-√7/3) and θ is in quadrant III.

A: Given that: cosθ=-73 According to the trigonometric ratio:…

Q: Write an algebraic expression that is equivalent to the given expression. cos(arcsin(3x))

A:

Q: Evaluate the expression below without using a calculator. cos(arccos (4/5)- arctan(3)) =

A:

Q: Use a calculator (in radian mode) to find an approximate value of the expression correct to five…

A:

Q: 1. Calculate each value, and draw a version of the Most Important Diagram that demonstrates your…

A: As per the instruction, we are answering only the first 3 subparts. For (a), arccos-12=2π3 Note:

Q: Evaluate and write the exact answer in radians (no decimals): cos−1(−12)cos-1(-12)

A: Given   cos-1 (-12)

Q: cos(135) = sin(135°) =

A:

Q: Find a simplified expression for tan cos 3 (), Check Answer

A:

Q: Evaluate without using a calculator.     cos    -1 ( cos 120 degree )

A: We hvae to calculate the value of - y = cos-1(cos120°)We can write it as -Using trigonometric…

Q: Evaluate the expression cos(@ – 6) if cos e = , 0 is in quadrant IV, tan o = -V3, and o is in…

A: givencosθ=35=BHby using Pythagoras theorem in a right angle triangleH2=B2+P252=32+P2P=4theerefore…

Q: Evaluate without using a calculator.     cos    -1 ( cos 45 degree )

A: It is known that cos-1cosθ=θ  provided 0≤θ≤180°. The given expression is cos-1cos45°

Q: Write an algebraic expression that is equivalent to the given expression. cos(arcsin(6x))

A: Given           cos(arcsin(6x)) We have to convert this into algebraic expression

Q: Evaluate without using a calculator.     cos    -1 ( cos 7pi/4)

A:

Q: 4. Without a calculator, find all the exact values. 2 cos? a - 5 cos a 3

A: Given trigonometric equation is

Q: If sinA +sin2A = 1 , then Find the value of the expression (cos2A+cos4A)

A:

Q: Suppose that csc a = and 0<a< 4 Find the exact values of cos and tan-

A:

Q: Use a cofunction to write an expression equal to cos 12 is

A:

Q: 167 radians, simplify the expression cos=1(cos (a)). If a = %3D

A:

Q: Find the exact value of the expression, if possible cos(cos-1 0.57). Do not use a calculator.

A: Find the exact value of the expression, if possible coscos-10.57

Q: 167 radians, simplify the expression cos-'(cos (a)). If a = 3

A: a = 16π3 radians cos-1(cos (a)) =?   Note:  1. cos(2π+θ) = cos(θ) 2. cos(π+θ) = -cos(θ) 3. domain of…

Q: Find the value of cos H rounded to the nearest hundredth, if necessary. F 20 H. 15 -- Answer: COs H…

A: Topic = Trigonometry

Q: Value of cos(30°)

A:

Q: evaluate the expression cos-1(sin(5pi/4))

A:

Q: Find the exact value of the expression. Do not use a calculator. sin cos 3 6. O A. O V3 -1 OB. Ос. 1…

A: since,              cosθ=sinπ2-θ So,             cosπ6=sinπ2-π6cosπ6=sin2π6=sinπ3

Q: ate the exact value of sin cos4 + cos sin4. Include a detailed diagra 15 15

A: We have to find the value of the given condition

Q: Find an exact value for cos(75 degrees)

A: Given: The trigonometric angle cos75° To find: The exact value of cos75°.

Q: cos

A:

Q: Use a cofunction to write an expression equal to coS 11

A:

Q: Evaluate without using a calculator. tan(cos−1 9/15)

A:

Q: calculator

A:

Q: Evaluate without using a calculator.       tan ( cos  -1 12/13)

A: Let us consider that cosθ=1213 On using a right angled triangle, we value of tanθ as In right…

Q: State the exact value of cos π 6

A: We have to state the exact value of  cos π6.

Fundamentals of Trigonometric Identities

Trigonometric Identities are the equalities that involve trigonometry functions and hold for all the values of variables given in the equation.