pls help to solve this q, ty.
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Answer : 2( cos⁴60⁰ + sin⁴60⁰) - (tan²60⁰ + cot²45) + 3 sec²30⁰
= 2 { (cos²)²60⁰ + (sin²)²60⁰ } - { (√3)² + ( 1)² } + 3 (2/√3)²
= 2(1) - ( 3 + 1 ) + 3( 4/3)
= 2 - 4 + 4
= 2
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