Evaluate the following expressions: `4cot^2 45o-sec^2 60o+sin^2 60o+cos^2 90o` . (ii) `3cos^2 30o+sec^2 30o+2cos0+3sin90o-tan^2 60o`

Evaluate the following expressions: 4cot^(2)45o-sec^(2)60o+sin^(2)60o+cos^(2)90o .(ii) 3cos^(2)30o+sec^(2)30o+2cos0+3sin90o-tan^(2)600

Evaluate the following expressions: (i) 4cot^2 45o-sec^2 60^o + sin^2 60^o + cos^2 90^o . (ii) 3cos^2 30^o + sec^2 30^o + 2cos0^o + 3sin90^o - tan^2 60^o

Evaluate the following expressions : 4cot ^2 45 ^∘−sec ^2 60 ^∘+sin ^2 60 ^∘+cos^ 2 90 ^∘

Evaluate the following expressions: 2sin^2 30otan60o-3cos^2 60osec^2 30o (ii) "c o s e c"^2 30osin^2 45o-sec^2 60o (iii) tan60ocos e c^2 45o+sec^2 60otan45o

Evaluate the following expressions: (i) 2sin^2 30^otan60^o-3cos^2 60^osec^2 30^o (ii) "c o s e c"^2 30^osin^2 45^o-sec^2 60^o (iii) tan60^ocos e c^2 45^o + sec^2 60^otan45^o

Evaluate the following: cos^2 30o+cos^2 45o+cos^2 60o+cos^2 90o (ii) tan^2 30o+tan^2 60o+tan^2 45o

Evaluate the following: (i) 4/(cot^2 30o)+1/(sin^2 60o)-cos^2 45o (ii) 4(sin^4 30o+cos^2 60o)-3(cos^2 45o-sin^2 90o)-sin^2 60o

Evaluate the following: (tan^2 60o+4cos^2 45o+3sec^2 30o+5cos^2 90o)/(cos e c\ 30o+sec60o-cot^2 30o)

Evaluate the following: 4(sin^4 60o+cos^4 30o)-3(tan^2 60o-tan^2 45o)+5cos^2 45o (ii) (cos e c^2 45osec^2 30o)(sin^2 30o+4cot^2 45o-sec^2 60o)

Evaluate the following: (i) 2sin^2 30o-3cos^2 45o+tan^2 60o (ii) sin^2 30ocos^2 45o+4tan^2 30o+1/2sin^2 90o-2cos^2 90o+1/(24)cos^2 0o .