Find the exact value of the expression by using appropriate identities. Do not use a calculator. tan 79° + tan 56° 1-tan 79° tan 56°

Q: Find tan(-A) if cot (π/2 - A)= -1.48

A: Solution:

Q: Verify that the following expression is an identity by simplifying one side of the equation to equal…

A: Given, cotx+tanx=secxcscx

Q: Find the exact value of each expression.

A: Given: tansin-135+π6

Q: Find the exact value of tan A in simplest radical form. B 61 60 A 11

A:

Q: Find the exact value of each expression:

A: Given,  tan7π12 Find the exact value of above expression.

Q: Determine the exact value of each expression without the aid of a calculator. 1. cos^-1(cos7π/6)

A: the exact value of each expression without the aid of a calculator. 1. cos^-1(cos7π/6)

Q: Find the exact value, in radians, of the expression tan'- 13)

A:

Q: Find the exact value of each expression. Sin (7π/12)

A:

Q: Find the exact value of the expression tan−1 (−√3/3 ) , if possible.

A:

Q: Give the exact value of  CSC 7(pi)/6

A: Given Data: Trigonometric Expression: csc7π6 The value of cosecant of angle π6 is, cscπ6=2

Q: Find the exact value of the expression. 7n tan- 12

A: Given expression is, tan7π12 Rewriting the above expression as, tan7π12=tan4π12+3π12tan7π12=tanπ3+π4

Q: Give the exact value of the expression without using a calculator. sin(2arccos(1/5))

A:

Q: Find the expression, identical to the given tan(5x)

A: Given the trigonometric identity tan(5x)

Q: Find the exact value of each expression, if it is defined. (If an answer is undefined, enter…

A: (a) Solve the expression. tan-1-1=tan-1-tanπ4=-π4 Thus, the value of the given expression is -π4.

Q: Use a calculator to evaluate the expression in both rac 7. tan-(-1.7) 8. cos- 0.24

A: we can find the value of the given inverse trigonometric functions by applying directly to the…

Q: Use an appropriate identity to find the exact value of the expression. 13) cos 13) 14) tan (165°)…

A:

Q: Solve the given equation  tan(Theta)=7 Theta= ........... rad

A: The trigonometric equation is given by tanθ = 7 To evaluate : The value of θ

Q: Find the exact value of each expression, if it is defined. (If an answer is undefined, enter…

A: t

Q: Find the exact value of: tan 40° + tan 140°

A: We have to find the Exact value of : tan40°+tan140°   .........(1)   As we know, tan(180-θ)=-tanθ…

Q: Use identities to simplify the following expression. Do not use a calculator. sin 4° 1+cos 4

A:

Q: Find the exact value of each expression.

A: Given :                The trigonometric expression is…

Q: Find the exact value of the given expression without using a calculator. 23n tan -- 4

A: The solution is :

Q: Find the exact value by using a difference identity. tan 195°

A:

Q: Use an identity to find the value of the expression. Do not use a calculator. sec2123° - tan 2123°

A: Use Trigonometry identity to solve this expression.

Q: Use a calculator to evaluate each expression to the nearest tenth of a degree. tan^-1 (0.849) = °

A:

Q: cos4 (theta)− sin4 (theta)= 2 cos2 (theta)− 1

A: Given: cos4θ-sin4θ=2cos2θ-1 To verify the given identity is equal or not.

Q: Find the exact values of the following and simplify. Indicate if an expression is undefined. Do not…

A: Solve the expression as follows.

Q: Verify the identity by transforming the lefthand side into the right-hand side.

A: We have to verify the identity: 1+tan2 θtan2 θ=cosec2 θ We know the identity, sec2 θ-tan2 θ=1⇒sec2…

Q: Find the exact value of the expression, if possible. Do not use a calculator.

A: The given expression is cos-1cos4π3. Obtain the value as follows.

Q: Find the exact value of each expression . tan-1(-1)

A: Our Aim is to find the exact value of the expression given below:-tan-1 (-1) -(i)

Q: Use an addition or subtraction formula to find the exact value of tan 75° = A+ VB, and fill in the…

A: Values of A and B

Q: 9) Use half-angle identity to find the exact a Value of tan 45°

A:

Q: find the exact value of the expression: 15 tan? + 6 sec2

A:

Q: Find the exact value of the expression, if possible tan-1 [tan (-π/6)]. Do not use a calculator.

A: Solution:-  the given question is  tan-1tan-π6

Q: Use an identity to find the exact value of the expression: Note: You are not allowed to use decimals…

A:

Q: Simplify the expression by using appropriate identities. Do not use a calculator. tan 6. + cot 2 -…

A:

Q: Use the fundamental identities to fully simplify the expression. cot(x) cos(x) + csc(x) sin²(x) In…

A: Please see the answer below.

Q: Approxamate the value to the nearest thousandth Tan 78°

A: From the given problem:   tan78°   So,   tan78° = 4.704630109

Q: If sin0=, then what is the value of cose 95

A:

Q: Complete the identity. sin(@)=

A: Trigonometry identity

Q: Use an identity to find the value of the expression. Do not use a calculator.

A: We have to find the value of the given expression   The given expression is  sin2π3+cos2π3   we…

Q: Find the exact value of the expression, if possible tan-1 [tan (-π/3)]. Do not use a calculator.

A: Given tan-1tan-π3

Q: Find the exact value of each expression, if it is defined. Express your answer in radians. (If an…

A: a. Let us assume that x=sin-132 Now taking sin-1 to left hand side we get  sinx=32 So the value of x…

Q: What is the value of tan theta, if sec theta = -3/2, and pi/6<theta<pi?

A: Here given  sec θ = -3/2 where π/6 &lt;  θ &lt; π 1/cos θ  = -3/2 cosθ = -2/3 Cos θ is negative in…

Q: Find the exact value of the given expression, without using a calculator. 12 Cos tan

A:

Q: Evaluate the expression without using a calculator, and write your answer in radians. tan (1) 4

A: Without using calculator find the value of tan inverse 1

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.