Question

If sin()+cos()=√2cos() then the value of tan() is

a) √2 − 1

b) √2 + 1

c) √2

d) −√2​

Answer 1

Answer:

sin()+cos()=√2cos()

sin()= √2cos() - cos()

sin()= cos()[√2 - 1]

sin()/cos() = √2 - 1

tan() = √2-1

Answer: a) √2 - 1

Answer 2

sin() + cos() = √2cos()

sin() = √2cos() - cos()

sin() = cos() [√2-1]

sin() / cos() = [√2-1]

tan() = [√2-1]