Please solve below ques
Please solve below ques
ashu , 10 Years ago
Grade 11
Trigonometry> Please solve below ques...
1 Answers
Rinkoo Gupta
Last Activity: 10 Years ago
Dear student,
please post your questions separately.
v3 cosec20 – sec 20
v3/sin20-1/cos20
=[v3cos20-sin20]/[sin20cos20]
=2[v3/2.cos20 -1/2 sin20]/sin 20cos20
=2[cos30.cos20-sin30.sin20]/sin20cos20
=2[cos(20+30)]/[sin20cos20]
=2os50/sin20cos20
=4cos50/2sin20cos20
=4cos50/sin40
=4cos(90-40)/sin40
=4sin40/sin40
=4
Thanks & Regards
Rinkoo Gupta
AskIITians Faculty
Provide a better Answer & Earn Cool Goodies
LIVE ONLINE CLASSES
Prepraring for the competition made easy just by live online class.
Full Live Access
Study Material
Live Doubts Solving
Daily Class Assignments
Ask a Doubt
Get your questions answered by the expert for free
Other Related Questions on trigonometry
In ABC, if cot A+cot B+cot C = cosecA cosecB cosecC, then prove that ABC is right angle triangle.
In ABC, if cot A+cot B+cot C = cosecA cosecB cosecC, then prove that ABC is right angle triangle.
trigonometry
1 Answer Available
Last Activity: 2 Years ago
- Find the general solution of equation tan3∂=cot2∂
For all angles between -720 and +720
- Find the general solution of equation tan3∂=cot2∂
For all angles between -720 and +720
trigonometry
0 Answer Available
Last Activity: 2 Years ago
To prove : Cosec(45 degree - A)Cosec(45 degree + A) = 2SecA
To prove : Cosec(45 degree - A)Cosec(45 degree + A) = 2SecA
trigonometry
0 Answer Available
Last Activity: 2 Years ago
cos^2 13ºcos^2 47º+cos^2 73º =? …..................
cos^2 13ºcos^2 47º+cos^2 73º =? …..................
trigonometry
0 Answer Available
Last Activity: 3 Years ago
Derive a formula for the area of the triangle, given b, A, B, and C. That is, derive the formula: (b^2sinAsinC)/(2sinB)
Derive a formula for the area of the triangle, given b, A, B, and C. That is, derive the formula: (b^2sinAsinC)/(2sinB)
trigonometry
0 Answer Available
Last Activity: 3 Years ago