sin 30° + tan45° - cosec 60°/cot 45° +cos 60° - sec 30°
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We know that
Sin 30 = 1/2
Tan 45 = 1
Cosec 60 = 2/(3)^1/2
Cot 45 = 1
Cos 60 = 1/2
Sec 30 = 2/(3)^1/2
By substituting all the values we get
1/2 + 1 - 2/(3)^1/2\1 + 1/2 - 2/(3)^1/2
= 1 + 1 + 1 - 4/(3)^1/2
= 3 - 4/(3)^1/2
= 3(3)^1/2 - 4 / (3)^1\2
Sin 30 = 1/2
Tan 45 = 1
Cosec 60 = 2/(3)^1/2
Cot 45 = 1
Cos 60 = 1/2
Sec 30 = 2/(3)^1/2
By substituting all the values we get
1/2 + 1 - 2/(3)^1/2\1 + 1/2 - 2/(3)^1/2
= 1 + 1 + 1 - 4/(3)^1/2
= 3 - 4/(3)^1/2
= 3(3)^1/2 - 4 / (3)^1\2
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