Math, asked by pravinthakar19, 4 months ago

14. If cos A + cos² A=1 then (sin2A + sin4A)= ?
(a)1/2
(b) 2
(c) 1
(d) 4

Answers

Answered by sandy1816

3

Answer:

➡cosA+cos²A=1

➡cosA=1-cos²A

➡cosA=sin²A

⏩sin²A+sin⁴A

=cosA+cos²A

=1

Previous Question

Next Question

Similar questions

Math, 2 months ago

total surface area of a cylinder _____________________...

Math, 2 months ago

pairs of a) intersecting lines b) parallel lines...

English, 2 months ago

You recently came across an article about the effects of social networking sites on children. Write a letter in about 100 to 120 words to the editor of a national newspaper expressing your concern about it and offer suggestions to solve the problem don't spam ...

English, 4 months ago

reconstruct the title: The impact of parental involvement on the academic achievement of senior high school students...

Science, 4 months ago

evaluate the importance of the main ingredients of human - made heterogeneous mixtures in our daily life...

Math, 8 months ago

factorize 12xy-6x+4y-2...

Computer Science, 8 months ago

please solve this problem...

English, 8 months ago

an artificial body moving around a planet in a defined orbit...