(SecA-cosA)2+(cosecA-sinA)2 = 1+cotA+tanA
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(secA-cosA)²+(cosecA-sinA)²
=sec²A-2secAcosA+cos²A+cosec²A-2cosecAsinA+sin²A
=sec²A+cosec²A+(sin²A+cos²A)-2(1/cosA)cosA-2(1/sinA)sinA
=sec²A+cosec²A+1-2-2
=(sec²A-1)+(cosec²A-1)+1-2
=tan²A+cot²A-1
Please check the question!
=sec²A-2secAcosA+cos²A+cosec²A-2cosecAsinA+sin²A
=sec²A+cosec²A+(sin²A+cos²A)-2(1/cosA)cosA-2(1/sinA)sinA
=sec²A+cosec²A+1-2-2
=(sec²A-1)+(cosec²A-1)+1-2
=tan²A+cot²A-1
Please check the question!
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