3 years ago

Cos? 0Ifcot2 0-cos203 and 0° < < 90°then the value of 0 is:

Mathematics

1 answer:

yanalaym [24]3 years ago

4 0

Step-by-step explanation:

NSWER

From the above equation, we get

cosθ=sinθ

Hence

θ=450

Therefore

sin4θ+cos4θ

=sin4450+cos4450

=2×(21)4

=2×41

=21

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