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Without using Trigonometric Tables evalu...

Without using Trigonometric Tables evaluate the following :- `sinthetacostheta-(sinthetacos(90^@-theta) costheta)/(sec(90^@-theta))-(costhetasin(90^@-theta)sintheta)/(cosec(90^@-theta))` .

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cos(90^@-theta)=sintheta .

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MBD-INTRODUCTION TO TRIGONOMETRY-EXERCISE
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  2. Without using Trigonometric Tables evaluate the following :- (tan 48)/...

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  3. Without using Trigonometric Tables evaluate the following :- sinthetac...

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  4. Without using Trigonometric Tables evaluate the following :- (2cos67^@...

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  5. Without using Trigonometric Tables evaluate the following :- (2cos65^@...

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  6. Without using Trigonometric Tables evaluate the following :- 2[(cos^2 ...

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  7. Without using Trigonometric Tables evaluate the following :- (sec50^@...

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  8. Without using Trigonometric Tables evaluate the following :- (1/2sec^2...

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  9. Without using Trigonometric Tables evaluate the following :- (2sin68^@...

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  10. Evaluate : (sin70^@)/(cos 20^@)+(cosec36^@)/(sec54^@)-(2cos43^@cosec47...

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  11. Without using Trigonometric Tables evaluate the following :- (sin^2 35...

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  12. Without using Trigonometric Tables evaluate the following :- (sin^2 35...

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  13. Without using Trigonometric Tables evaluate the following :- (sec^2 5...

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  14. Without using Trigonometric Tables evaluate the following :- sec^2 10...

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  15. Without using Trigonometric Tables evaluate the following :- (sec^2(90...

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  16. If sin 3theta = cos (theta-6^@) where 3theta and theta-6^@ are acute...

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  17. If sin A = cos B, both A and B are acute angles, find A + B.

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  18. If cosec 2A = sec (A + 6^@) where 2A and A + 6^@ are acute angles find...

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  19. If sin 5theta = cos 4theta where 5theta and 4theta are acute angles, f...

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  20. If tan 2theta = cot 4theta where 2theta and 4theta are acute angles. F...

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