01-05-2020
Mathematics

contestada

1. sin(x+20) = cos(2x+10)
2. sin (2x+14) = cos(x-5)

Respuesta :

surjithayer10 surjithayer10

02-05-2020

Answer:

x=20°

2.

x=27°

Step-by-step explanation:

sin(x+20)=cos (2x+10)

=sin (90-(2x+10))

so x+20=90-(2x+10)

x+20+2x+10=90

3x=90-30

3x=60

x=60/3=20

2.

2x+14+x-5=90

3x+9=90

3x=90-9=81

x=81/3=27

Answer Link

Otras preguntas

what is 10 / 24 is it 0.24 am i right?

Scholasticism synthesizes _________________ with Christian beliefs. Platonic idealism Augustinian Neoplatonism Aristotelian philosophy Gregorian monotheism

3kg cirese. 4kg caise 46lei 2kg cirese. 3kg caise 33lei

Can someone please help me

Does budding have a form of asexual reproduction

Which of these are true of political action committees (PACs) but not of interest groups? Select all that apply. a.PACs promote social causes. b.PACs provide f

how does verbs work ?

Find the circumference of the circle if the square has an area of 144 m2. Give your answer to the nearest tenth. Use 3.14 for pi

What was the reason Jews migrated to Palestine after World War II?

Describe the process of sea floor spreading.