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OSWAL PUBLICATION-INTRODUCTION TO TRIGONOMETRY AND TRIGONOMETRIC IDENTITIES -NCERT EXEMPLAR (Exercise - 8.1) (Choose the correct answer from the given four options)
- If cos A=4/5, then the value of tanA is
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- if sinA=1/2, then the value of cot A
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- The value of the expression cosec (75^(@)+theta) - sec(15^@)-theta)-ta...
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- If sintheta=a/b, then costheta is equal to
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- If cos(alpha + beta)=0, then sin(alpha-beta) can be reduced to
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- Value of (tan 1^@ tan2^@ tan3^@...tan89^@) is :
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- If cos9alpha=sinalpha and 9alpha lt 90^(@), then the value of tan5alph...
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- If DeltaABC is right angled at C, then the value of cos(A+B) is
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- If sin A + sin^2 A = 1 , then the value of the expression (cos^2A+ cos...
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- If sinalpha=1/2 and cosbeta=1/2, then the value of (alpha+beta) is
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- Find the value of [(sin^2 2 2^(@)+sin^2 6 8^(@))/(cos^2 2 2^(@)+cos^2 ...
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- If 4 tantheta=3, then ((4sintheta-costheta)/(4 sintheta-costheta)) is ...
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- if sintheta-costheta=0, then the value of (sin^4theta+cos^4theta) is
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- The value of sin(45^(@)+theta) - cos(45^(@)-theta) is
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