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Evaluate the following: (i) sin45osin...

Evaluate the following: (i) `sin45osin30o+cos45ocos30o` (ii) `sin60ocos30o+cos60osin30o`

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Evaluate the following: (i) sec50osin40o+cos40o cos e c 50o (ii) sec70osin20o-cos20o cos e c 70o

Evaluate the following: (cos0o+sin45o+sin30o)(sin90o-cos45o+cos60o) (ii) (sin30o-sin90o+2cos0o)/(tan30otan60o)

Evaluate each of the following in the simplest form: sin60ocos30o+cos60osin30o (ii) sin60ocos45o+cos60osin45o (iii) cos60ocos30o+sin60osin30o (iv) cos60ocos30o-sin60osin30o

Evaluate the following: (i) sin35osin55o-cos35ocos55o (ii) tan48otan23otan42otan67o (iii) sec50osin40o+cos40ocos e c 50o

Evaluate each of the following: (sin^2 45o+cos^2 45o)/(tan^2 60o) (ii) (sin30o-sin90o+2cos0o)/(tan30otan60o)

Evaluate the following: (i) cos600cos45o-sin60sin45o( ii) sin^(2)30o+sin^(2)45o+sin^(2)60o+sin^(2)90o

Evaluate the following: (i) 2sin^(2)30o-3cos^(2)45o+tan^(2)60o( ii) sin^(2)30o cos^(2)45o+4tan^(2)30o+(1)/(2)sin^(2)90o-2cos^(2)90o+(1)/(24)cos^(2)00

Evaluate each of the following: (sin60o)/(cos^(2)45o)-cot30o+15cos90o( (ii) (5sin^(2)30o+cos^(2)45o-4tan^(2)30o)/(2sin300cos30o+tan45o)

Evalulate the following : sin60^(@)cos30^(@)+sin30^(@)cos 60^(@)

RD SHARMA-TRIGONOMETRIC RATIOS-All Questions
  1. Given that sin(A+B)=sinAcosB+cosAsinB , find the value of sin75^@ .

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  2. In a rectangle A B C D ,\ \ A B=20 c m , /B A C=60o . Calculate ...

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  3. Evaluate the following: (i) sin45osin30o+cos45ocos30o (ii) sin60oc...

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  4. Evaluate the following: (i) cos60ocos45o-sin60osin45o (ii) sin^2 3...

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  5. Evaluate the following: cos^2 30o+cos^2 45o+cos^2 60o+cos^2 90o (...

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  6. Evaluate the following: (i) 2sin^2 30o-3cos^2 45o+tan^2 60o (ii) s...

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  7. Evaluate the following: 4(sin^4 60o+cos^4 30o)-3(tan^2 60o-tan^2 4...

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  8. Evaluate the following: cos e c^3 30ocos60otan^3 45osin^2 90osec^2 ...

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  9. Evaluate the following: (cos0o+sin45o+sin30o)(sin90o-cos45o+cos60o)...

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

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  11. Evaluate the following: (tan^2 60o+4cos^2 45o+3sec^2 30o+5cos^2 90o...

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  12. Evaluate the following: (tan45^@)/(cos e c\ 30^@)+(sec60^@)/(cot45^@...

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  13. Find the value of x in each of the following: (i) 2sin3x=sqrt(3) (...

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  14. Find the value of x in each of the following: tanx=sin45ocos45o+...

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  15. If theta=30^@ , verify that: (i) tan2theta=(2tantheta)/(1-tan^2theta...

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  16. If theta=30^@ , verify that: (i) cos2theta=(1-tan^2theta)/(1+tan^2th...

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  17. If A=B=60^@ , verify that (i) cos(A-B)=cosAcosB+sinAsinB (ii) sin(A...

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  18. If A=30o and B=60o , verify that sin(A+B)=sinAcosB+cosAsinB (ii) c...

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  19. Using the formula of sin(A-B)=sinAcosB-cosAsinB find the value of sin1...

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  20. In a right triangle A B C , right angled at C , if /B=60o and A ...

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