durga95 durga95

07-05-2019
Mathematics

contestada

How do you prove 4 (cos^4A + sin^4A) / (3+cos4A) = (cos^4A-sin^4A) sec2A?

Respuesta :

kaylasandvick kaylasandvick

07-05-2019

Step-by-step explanation:

Step 1: (sin²A+cos²A)²

Step 2: (a+b)² = a²+b²+2ab

Step 3: (sin²A+cos²A)²=sin⁴+cos⁴+2sin²Acos²A

make sure to use: sin²a+cos²a=1

Step 4: (1)²-2sin²Acos²A = sin⁴A+cos⁴A

Step 5: 1-2sin²Acos²A = sin⁴A+cos⁴A

Answer Link

Otras preguntas

Maintaining a balance of microorganisms in your gut is an example of which characteristic of life?

D. Why do the mulatto(mixed race) children have it worse than the other slaves?

Gina’s family played croquet, a lawn game in which balls are hit by mallets. Each player hits his or her ball around a path. The first person to hit the stake a

Where can you find thousands of templates for Excel? O Home tab Page Layout tab Backstage View O Insert

NEED ASAP Which value is the solution for the equation tanx/2=1 pi/2 pi/4 3pi/4 3pi/2

10 times a number x plus 6 is no less than 42.

Which piece of dialogue from "The Catnapper" best reveals the author's message that problems are more easily solved when people work together? A. Early Wednesda

What’s the kinetic energy of the object? Use . Erica is competing in the shot put event at a track meet. She hurls a shot with a mass of 4 kilograms at a speed

What should you include in the conclusion of your informational essay?(1 point) your argument some entertainment the major points all of the details

i needed him to explain step by step i needed that