हे. _'........०६9 IS ;67 500 + ०५9 इ0० ८50 =६८ �

1.	हे. _'........०६9 IS ;67 500 + ०५9 इ0० ८50 =६८ द०००+ ०८ हा. हैं17 OIS +o9 - Te B
Answer» sin^2(90-27)+sin^227/cos^2(90-17)+cos^273=cos^227+sin^227/sin^273+cos^273=1/1=1 sin25sin(90-25)+cos25cos(90-25)=sin25sin25+cos25cos25=(sin25)^2+(cos25)^2 =as sin square theta+cos square theta =1=hence (sin25)^2+(cos25)^2=1 answer=1.

हे. _'........०६9 IS ;67 500 + ०५9 इ0० ८50 =६८ द०००+ ०८ हा. हैं17 OIS +o9 - Te B

Answer»

sin^2(90-27)+sin^227/cos^2(90-17)+cos^273=cos^227+sin^227/sin^273+cos^273=1/1=1

sin25sin(90-25)+cos25cos(90-25)=sin25sin25+cos25cos25=(sin25)^2+(cos25)^2

=as sin square theta+cos square theta =1=hence (sin25)^2+(cos25)^2=1

answer=1.