Chad was asked whether the following equation is an identity: (3z + 2y)? = (3z + 2y)(3z – 2y) + 2(2y)² He performed the following steps: (3z + 2y)² Step 1 = 922 + 4y? Step 2 = 9z² + 4y² + 4y² – 4y? Step 3 (9z² – 4y²) + 8y² Step 4 (3z + 2y)(3z – 2y) + 2(2y)² For this reason, Chad stated that the equation is a true identity. Is Chad correct? If not, in which step did he make a mistake?

Q: Pick the identity that is NOT correct. O n2"-1 = E-1j (;) O (;) = („"x) O E ) (2η' = E1 () n 2j \2j-

A:

Q: Find the exact value of the expression. 57t COS 12 o VZWB - 1) VZW3-1) 4 O 2W3-1) 4

A:

Q: The formula for the law of cosines is x2 = y2 + z² - 2yz cos X. O True O False

A: Law of cosine is used to find the unknown side of a triangle if we know other two sides and the…

Q: 4л Evaluate cos 3. a. b. 0.5 с. -2 d. -0.5

A: we have to evaluate cos(4π/3)

Q: Which of the following equations is an identity? There is only one in the list. a) æ² + y? = r² b)…

A:

Q: Which is the simplified form of the expression t. 1-cos(5A), 1+cos(5A)

A:

Q: If (sinztcosz) (cscz+1)+cotz value of A? = A is an identity, which among the following expressions…

A: Trignametric ratios

Q: Evaluate ST (x² – 3x + 6) cos(x)dæ Select one: 2л + 6 — 2п — 6 None of these -27 -2T + 6

A: To evaluate the definite integration

Q: 12. cos-1 %3D A. 7n O B. 3 6 C.

A:

Q: Use the sum-to-product identities to rewrite the expression. cos 3a + cos 6a

A:

Q: cos2x = 1 -S2sinx %3D 1 + S2sinx

A:

Q: 12) cos² 0 = 1 020 14) 4cot2 0 = 1+ cot? 0 16) 1+3cot2 0 = 4cot? 0-2

A: Topic:- trigonometry

Q: :- Find. fCu if f(b)= cos3t Lif(t}= FCS) = %3D s+9 Explain how to unify the denominators ... .....

A:

Q: Simplify the expression by writing it in terms of 0. 3n. cos(0 – 37) 2

A: We know that, cos-α=cosα          ⋯⋯1cos3π2-α=-sinα       ⋯⋯2

Q: b) cos 2B

A: using  cos(2B)=cos2B-sin2B ....(1)

Q: O Find the equatisns ifyou know The rootSa. (うー,ノ ー4X の4=Ge 2X ②リ=e [a cas cos 3X+ CzSin3x -3X

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: O D. It makes sense. To verify an identity, show that one side of the identity can be simplified so…

A: Given that: To prove a trigonometric identity, I select one side of the equation and transform it is…

Q: Write the product as a sum or difference: 4 cos(44p)cos(20p)

A: Topic - trigonometry Formulas 2Cos A Cos B = Cos (A+B) + Cos (A-B)

Q: 3. Verify each of the following identities. b. csc(20) = sec 0 csc 0 CSC

A:

Q: Which expression is equivalent to Cos(4x) + cos(2r)? O A. 2cos(3r)cos Ов. -2sin(3r)sinr C.…

A:

Q: Prove that the following identity is true. sec y – tan y = 1 sec? y + tan? y We begin on the left…

A: To prove thatsec4y-tan4ysec2y+tan2y=1

Q: If the product of csc(x/2) and cos(x/3 + 60°) is equal to 1, find the value of x. A. 46°         B.…

A:

Q: if y= 2cos (), then 을 A)-8cos (좋) B)-2cos (플) c) - sin () D Cos E)-올oos (즐)

A: If f(x) and g(x) are the function of 'x'  , then y= f(g(x))                 .............(1)…

Q: Find cos 2a, if cosa =12/13and 3pi/2 <a<2

A:

Q: A.B = 6+b =[4+ b²19+1 TAL IB| Cos o %3D

A: Given,         A.B=|A|.|B| cos(0)   ⇒ 6+b=4+b2.9+1

Q: Write the expression as a Single trigonometnic furction. cos 6x cos4x Sin6x Sin4x a Cos 12x b. Sin…

A: Explanation of the answer is as follows

Q: 5: If OA = 2i –j+ 3k, OB = 3i + 2j – 4k, OC = -i+3j – 2k Find the yector | 24C + 34R I

A: According to the guidelines issued by the company We are supposed to answer only one question.…

Q: 3. xp 1/2 cos I. -2

A: The given integral is

Q: If sin(a)=0.2sin and cos(b)=0.75 determine the values of the following expressions (round to four…

A: Given data: The given value of the sine function is sin(a)=0.2. The given value of the cosine…

Q: 2) cos A B. 16 12 20

A: Given,         A right triangle ABC is shown below :

Q: r =3 coS50 %3D

A: See the details solution in below

Q: Evaluate S" -2n 1 cos³ w sinsw dw 2 O - 1/2 O 1/2 O 1

A: Please find attachment for the details solution

Q: 1. Suppose a fellow student claims that the equation sin(a + b) = sin a + sin b is an identity. He's…

A: The meaning of sin(a+b)=sin(a) + sin(b) is that trigonometric ratio is distributive over addition.

Q: that the following identity is true. sec4 sec2 y - tan4 = 1 y + tan? y We begin on the left side of…

A:

Q: Show that the form of the Law of Cosines written 2 = a + b - 2ab cos y reduces to the Pythagorean…

A: c2=a2+b2-2ab cosγ

Q: VERIFY THE IDENTITY 4 cos?x-4sin?x cos?x +4sin?x- 4sin*x = 4cos2x. %3D

A:

Q: Given cos 20= 3/4 and n < 0 < 3rt/2, find cos e 6. a) 7/8 b) -7/8 c) -V14/4 d) V14/4

A: given               cos2θ=34 and π&lt;θ&lt;3π2

Q: If the identity sin (x + a) = sin x cos a + cos x sin a is differentiated with respect to x, is the…

A: The equation is differentiated with respect to x. a is constant with respect to x.

Q: Eliminate the arbitrary constants of the following. Simplify your answers.  5. y = c1 cos2x + c2sin…

A:

Q: Find ∫cos (7θ + 3) dθ.

A: Consider the provided expression, ∫cos7θ+3dθ Find the value of the integral. Apply the Substitution…

Q: Find the exact value of the given expression. cos(2tan^-1(24/7))

A:

Q: If y = y(t), write y' in Leibniz notation. %3D Enter the answer in the box.

A: Question is based on Leibniz notation.

Q: Convert the expression. 1+cos 4y

A:

Q: Which of the following statements correctly describes the waveform corresponding to this frequency…

A:

Q: Evaluate 3 L, cos¹ (2+1) dr. -1

A: l have given the answer in the next step. Hope you understand that

Q: Evaluate: x?sin2x dx A - 2x?cos2x+2xsin2x - cos2x +C 4 2x?cos2x - 2xsin2x+ cos2x -+C B 4 2x?cos2x +…

A:

Q: 2) cos Č 34 30 16 B

A:

Q: [ 2 cos(2a) da = -4 sin(2x)+C. Select one: O True O False

A: We have to check whether the given equation is true or false. Given, ∫2cos2xdx=-4sin2x+C Following…

Q: i. (АC)? %3 (АВ)? + (ВC)? — 4 (АB) (ВС) сos A iі. (ВC)? %3D (АВ)? + (АC) — 4 (АВ) (АC) сos B…

A: