Question

if sina -cos a=0 then find sin4+cos4​

Answer 1

Answer:

Hey

Sin A - Cos A =0

Sin A=Cos A

Sin A/Cos A =1

tan A =1

tan A =tan 45

A =45

therefore Sin ^4 A + Cos ^4A

Sin ^4 45° + Cos ^4 45°

➡️ (1/√2)^4 + ( 1/√2)^4

➡️ 1/4+1/4= 2/4

➡️ 1/2

Step-by-step explanation:

Hope its help uhh...(◕ᴗ◕✿)

Answer 2

A is 45

sin⁴45⁰+cos⁴45⁰

=2×(1/√2)²

=2×1/4

=1/2