I hope this helps you

✔cos^2A+sin^2A=1

✔1-cos^2A=sin^2A

✔cos2A=cos^2A-sin^2A

✔sin2A=2.sinA.cosA

secA=1/cosA

tgA=sinA/cosA

sin^2A/1/cos^2A-sin^2A/cos^2A

sin^2A.cos^2A/cos2A

2.sin^2A.cos^2A/cos2A

sin2A.2.sin2A/cos2A

tg2A.2.sin2A

6 0

3 years ago

A one year membership to the gym costs $362. When signing up, members pay $54 for the first month, then the remaining part is ma

netineya [11]

362-54 divided by 12

308 divided by 12

25.67 a month

8 0

4 years ago

What is the answer to -10(x+4)+42=-19-19

BartSMP [9]

Answer:

x=4

Step-by-step explanation:

6 0

3 years ago

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