Question

3cos²45+5sin²45+2tan²45​

Answer 1

Step-by-step explanation:

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Answer 2

Answer: 6

Step-by-step explanation:

cos45=1/√2

sin45=1/√2

tan45=1

3cos^2(45)+5sin^2(45)+2tan^2(45) = 3*(1/√2)^2+5*(1/√2)^2+2*(1)^2

= 3*1/2+5*1/2+2*1

= 3/2+5/2+2

= (3+5+4)/2

= 12/2

= 6