CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
Question

Find the value of sin 50ocos 40o+cosec 40osec 50o4 cos 50o cosec 40o.

Open in App
Solution

As we know

sin50o=sin(9040)=cos50o

cosec40o=cosec(9050)=sec40o

cos50o=cos(9040)=sin40o

sin40o cosec40o=1

now put these values in this,

sin 50ocos 40o+cosec 40osec 50o4 cos 50o cosec 40o

and we get,


fraction numerator cos 40 over denominator cos 40 end fraction plus fraction numerator s e c 50 over denominator s e c 50 end fraction minus 4 sin 40 cos e c 40 1 plus 1 minus 4 equals negative 2


flag
Suggest Corrections
thumbs-up
1
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Trigonometric Ratios of Complementary Angles
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon