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CBSE Notes 2011-2012 » X-Maths-Term1

# Introduction to Trigonometry

## If cosec A - cot A = 4/5 then cosec A =

Multiple choice question

If cosec A - cot A = 4/5 then cosec A =

## Who said "There is perhaps nothing which so occupies the middle position of mathematics as trigonome...

Multiple choice question

Who said "There is perhaps nothing which so occupies the middle position of mathematics as trigonometry"?

## If sin x + cosec x = 2, then sin19x + cosec20x is equal to

Multiple choice question

If sin x + cosec x = 2, then sin19x + cosec20x is equal to

## If sin x + sin2x - 1, then value of cos2x + cos4x is equal to

Multiple choice question

If sin x + sin2x - 1, then value of cos2x + cos4x is equal to

## If tan A + cot A = 4, then tan4 A + cot4 A is equal to

Multiple choice question

If tan A + cot A = 4, then tan4 A + cot4 A is equal to

## If sec A + tan A = x, then tan A =

Multiple choice question

If sec A + tan A = x, then tan A = 