Mathematics, 21.09.2021 20:40 baeethtsadia

2.(a) Express √2 cos x - √5 sin x in the form R cos(x + α), where R > 0 and 0° < α < 90°. Give the exact value of R and the value of a correct to 3 decimal places.
[3]
(b) Hence solve the equation √2 cos 2θ - √5 sin 2θ = 1, for 0° < θ < 180°.
[4]

Answers: 3

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 15:00

Write the product as a trinomial. (x + 2)(x + 3) x2 + 5x + 6 x2 + 6x + 6 x2 + 6x + 5 x2 + 5

Answers: 2

Answer

Mathematics, 21.06.2019 17:00

This is different from the first one can someone me

Answers: 1

Answer

Mathematics, 21.06.2019 21:10

Hey free points ! people i have a few math questions on my profile consider looking at them i have to get done in 30 mins!

Answers: 1

Answer

Mathematics, 21.06.2019 23:50

What is the scale factor of two similar pyramids with volumes of 64 cubic feet and 8 cubic feet

Answers: 1

Answer

You know the right answer?

2.(a) Express √2 cos x - √5 sin x in the form R cos(x + α), where R > 0 and 0° < α < 90°. G...

Questions

Chemistry, 26.08.2021 16:30

Explain what the South African Government is doing to promote equal access to basic services. At least, THREE basic services may be explained....

Social Studies, 26.08.2021 16:30

PLEASE HELP Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. Find the product an...

Computers and Technology, 26.08.2021 16:30

Ryan would like to copy a list of contacts from a colleague into his personal address book. The list of contacts is contained in a simple text file. W...

Biology, 26.08.2021 16:30

14. Leaves of many plants have surfaces made up of a biomolecu e that is not water-permeable to help reduce water loss. How does this biomolecule di...

History, 26.08.2021 16:30

Who invented the car? . . . . . . . . . . . . . . . .

Chemistry, 26.08.2021 16:30

The given graduated cylinder is calibrated in milliliters (mL). Determine the volume of liquid in the graduated cylinder and report it to the correct...

Geography, 26.08.2021 16:30

Which graph represents a function with an initial value of One-half? On a coordinate plane, an exponential function approaches y = 0 in quadrant 2 a...

Mathematics, 26.08.2021 16:30

Find the distance along an arc on the surface of the earth that subtends a central angle of 1 minute(s) (1 minute = 1/60 degree). The radius of the ea...

History, 26.08.2021 16:30

In the acronym APACT, the first "A" stands for author. Do you need to know the author's name? A. yes, because you cannot use them as a source...

Chemistry, 26.08.2021 16:30

What is the rate of a reaction if the value of k is 3 and [A] and [B] are each 2 M? Rate = k[A]2[B] A. 12 (mol/L)/s B. 2 (mol/L)/s C. 24 (mol/L)/s D....

Physics, 26.08.2021 16:30

What is kinematics ??explain !!!...

Mathematics, 26.08.2021 16:30

In the figure above pqr its a tangent to a circle at qts its a diameter and str and quv are per that to a frie et OUT) dameters andSTR and our...

German, 26.08.2021 16:30

Guys wanna talk im so board...

Mathematics, 26.08.2021 16:30

Solve. x-6=-18 A x=-24 B x=-12 C x= 12 D x= 6...

Mathematics, 26.08.2021 16:30

The sum of z and 7 is not equal to 9...

Mathematics, 26.08.2021 16:30

The Washington Monument is 169 meters tall. A model of the monument is made using the ratio 1 : 500 How high is the model in centimeters?...

Social Studies, 26.08.2021 16:30

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. Find the quotient and explain the process a...

Mathematics, 26.08.2021 16:30

Solve for variable (image attached) ...

Mathematics, 26.08.2021 16:30

3x-2=9x+10-6x I need help ASAP pls...

History, 26.08.2021 16:30

The Coercive Acts were popular in the British Parliament. True False...

More questions: Mathematics Another questions

2.(a) Express √2 cos x - √5 sin x in the form R cos(x + α), where R > 0 and 0° < α < 90°. Give the exact value of R and the value of a correct to 3 decimal places. [3] (b) Hence solve the equation √2 cos 2θ - √5 sin 2θ = 1, for 0° < θ < 180°. [4]

Answers

Another question on Mathematics

2.(a) Express √2 cos x - √5 sin x in the form R cos(x + α), where R > 0 and 0° < α < 90°. Give the exact value of R and the value of a correct to 3 decimal places.
[3]
(b) Hence solve the equation √2 cos 2θ - √5 sin 2θ = 1, for 0° < θ < 180°.
[4]