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VGS PUBLICATION-BRILLIANT(TELUGU)-త్రికోణమితి-Exercise
- (1+ cot^(2) 45^(0))^(2)=
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- 1-tan^(2) 30^(0) // 1+tan^(2) 30^(0)=
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- cosec^(2) theta // cot theta - cot theta=
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- sqrt ( ( sec x + tan x) //sec x - tan x) )=
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- 4 sin 30^(0).sec60^(0) = x tan 45^(0) అయిన x=
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- sin 60^(0) cos 30^(0) + cos 60^(0).sin 30^(0) విలువ
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- sin (A+B) = sqrt 3/2 , cos B = sqrt 3/2 అయిన A విలువ
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- tan 45^(0) // cosec 30^(0) + sec 60^(0) / cot 45^(0)=
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- cos (A-B) = 1/2 , sin B = 1/sqrt 2 అయిన A విలువ
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- cos 75^(0)విలువ
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- (1+tan^(2) A)( 1- sin^(2) A) =
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- tan 30^(0)
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- sin^(2) 45^(0) + cos^(2) 45^(0)+tan^(2) 45^(0)=
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- sin^(4) A - cos^(4) A // sin^(2) A - cos^(2) A=
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- sin theta = 1/2 అయిన cos 3 theta //2=
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- cos (90-theta)=
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- tan theta . sqrt (1-sin^(2) theta) / sqrt (1-cos^(2) theta) =
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- sec theta + tan theta = 1/5 అయిన sin theta=
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- (sec 45^(0) + tan45^(0) )(sec 45^(0) - tan 45^(0))=
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- sin 30^(0)+cos 30^(0) '=
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