(90^(@)-theta)cot theta+cos^(2)25^(@)+cos^(2)65^(@))/(27^(@)tan63^(@))=(2)/(3)

Without using trigonometric tables,find the value of the following expression: (sec(90-theta)*cos ec theta tan(90-theta)cot theta+cos^(2)25+cos^(2)65)/(3tan27^(@)*tan63^(@))

Without using trigonometric tables, find the value of the following expression : (sec (90°-theta).cosec theta — tan (90°-theta) cot theta + cos^2 25° + cos^2 65°)/(3tan27^@.tan63^@)

Evaluate the following.(sec^(2)(90-theta)-cot^(2)theta)/(2(sin^(2)25^(@)+sin^(2)65^(@)))-(2cos^(2)60tan^(2)28^(@)tan^(2)62)/(3(sec^(2)43^(@)-cot^(2)47^(@)))

The value of cottheta.tan(90^(@)-theta)-sec(90^(@)-theta)cosectheta+(sin^(2)25^(@)+sin^(2)65^(@)) is

Prove that :(sin theta cos(90^(0)-theta)cos theta)/(sin(90^(0)-theta))+(cos theta sin(90^(0)-theta)sin theta)/(cos(90^(@)-theta))=1csc^(2)(90^(@)-theta)-tan^(2)theta=cos^(2)(90^(@)-theta)+cos^(2)theta

(tan(90^@-theta) cot theta)/(cosec^2 theta)-cos^2 theta=0

Without using Trigonometric Tables evaluate the following :- (sec^2(90^@-theta)-cot^2theta)/(2[sin^2 25^@+sin^2 65^@]) +(2cos^2 60^@tan^2 28^@tan^2 62^@)/(3[sec^2 43^@-cot^2 47^@] .

The value of (cos(90^(0)-theta)sec(90^(@)-theta)tan theta)/(csc(90^(@)-theta)sin(90^(@)-theta)cot(90^(@)-theta))+(tan(90^(@)-theta))/(cot theta) is 1(b)-1(c)2(d)-2

Prove the following: (cos(90^(@)-theta)sec(90^(@)-theta)tan theta)/(cos ec(90^(@)-theta)sin(90^(@)-theta)cot(90^(@)-theta))+(tan(90^(@)-theta))/(cot theta)=2

Prove that: (cos ec(90^(@)+theta)+cot(450^(@)+theta))/(cos ec(90^(@)-theta)+tan(180^(@)-theta))+(tan(180^(@)+theta)+sec(180^(@)-theta))/(tan(360^(@)+theta)-sec(-theta))=2