wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Which of the following options are equal to 1+cos A1cos A ?


A

1cos Asin A

No worries! We‘ve got your back. Try BYJU‘S free classes today!
B

1+cos Asin A

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C

cosec A+cot A

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D

sec A+tan A

No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct options are
B

1+cos Asin A


C

cosec A+cot A


1+cos A1cos A=(1+cos A1cos A)(1+cos A1+cos A)

=(1+cos A)21cos2A

=(1+cos A)2sin2 A....(sin2A+cos2A=1)

=1+cos AsinA

=1sin A+cos Asin A

=cosec A+cot A


flag
Suggest Corrections
thumbs-up
2
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Trigonometric Identities_Concept
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon