Without using Trigonometric Tables evalu...

Without using Trigonometric Tables evaluate the following :- `((tan20^@)/(cosec70^@))^2+((cot20^@)/sec70^@)+2tan15^@tan37^@tan53^@tan60^@tan75^@` .

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Without using Trigonometric Tables evaluate the following :- sec70^@sin20^@-cos20^@cosec70^@ .

Without using Trigonometric Tables evaluate the following :- 3((sin36^@)/(cos54^@))^2 -2((tan18^@)/cot72^@)^3+2tan13^@tan21^@tan69^@tan77^@ .

Without using Trigonometric Tables evaluate the following :- (2cos65^@)/(sin25^@)-(tan20^@)/(cot70^@)-sin90^@+tan5^@tan35^@tan60^@tan55^@tan85^@ .

Without using Trigonometric Tables evaluate the following :- (2cos67^@)/(sin23^@)-(tan40^@)/(cot50^@)-cos0^@+tan15^@tan25^@tan60^@tan65^@tan75^@ .

Without using Trigonometric Tables evaluate the following :- (2sin68^@)/(cos22^@)-(2cot15^@)/(5tan75^@)-(3tan45^@tan20^@tan40^@tan70^@tan50^@)/5 .

Without using Trigonometric Tables evaluate the following :- 2[(cos^2 20^@+cos^2 70^@)/(sin^2 25^@+sin^2 65^@)]-tan45^@+tan13^@tan23^@tan30^@tan67^@tan77^ @

Without using Trigonometric Tables evaluate the following :- (tan 48)/(2cot42^@)+(3cosec31^@)/(sec59^@)-(cos69^@)/(2sin21^@)+2tan23^@tan37^@tan67^@tan53^@ .

Without using Trigonometric Tables evaluate the following :- (cos58^@)/(sin32^@)+(sin22^@)/(cos68^@)-(cos38^@ cosec52^@)/(tan18^@tan35^@tan60^@tan72^@tan55^@) .

Without using Trigonometric Tables evaluate the following :- (1/2sec^2 60^@-1/2tan^2 60^@)/(4[cos^2 29^@+cos^2 61^@] .

Without using Trigonometric Tables evaluate the following :- (sin^2 35^@+sin^2 55^@)/(tan10^@tan20^@tan30^@tan70^@tan80^@) .

MBD-INTRODUCTION TO TRIGONOMETRY-EXERCISE

Without using Trigonometric Tables evaluate the following :- (cos35^@...
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Without using Trigonometric Tables evaluate the following :- (cos58^@)...
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Without using Trigonometric Tables evaluate the following :- ((tan20^@...
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Without using Trigonometric Tables evaluate the following :- 3((sin36^...
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Without using Trigonometric Tables evaluate the following :- (tan 48)/...
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Without using Trigonometric Tables evaluate the following :- sinthetac...
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Without using Trigonometric Tables evaluate the following :- (2cos67^@...
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Without using Trigonometric Tables evaluate the following :- (2cos65^@...
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Without using Trigonometric Tables evaluate the following :- 2[(cos^2 ...
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Without using Trigonometric Tables evaluate the following :- (sec50^@...
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Without using Trigonometric Tables evaluate the following :- (1/2sec^2...
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Without using Trigonometric Tables evaluate the following :- (2sin68^@...
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Evaluate : (sin70^@)/(cos 20^@)+(cosec36^@)/(sec54^@)-(2cos43^@cosec47...
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Without using Trigonometric Tables evaluate the following :- (sin^2 35...
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Without using Trigonometric Tables evaluate the following :- (sin^2 35...
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Without using Trigonometric Tables evaluate the following :- (sec^2 5...
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Without using Trigonometric Tables evaluate the following :- sec^2 10...
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Without using Trigonometric Tables evaluate the following :- (sec^2(90...
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If sin 3theta = cos (theta-6^@) where 3theta and theta-6^@ are acute...
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If sin A = cos B, both A and B are acute angles, find A + B.
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