Answer
Step by step text solution for Find the value of cos 90^(@) + sin 90^(@) by MATHS experts to help you in doubts & scoring excellent marks in Class 10 exams.
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FULL MARKS-TRIGONOMETRY-ADDITIONAL QUESTIONS SOLVED (III)
- Prove that sqrt((sectheta-1)/(sectheta+1))+sqrt((sectheta+1)/(sectheta...
04:38
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- Prove that (1+cosA)/(sinA)+(sinA)/(1+cosA)=2cosecA
02:27
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- Express the following sum or difference as a product (ii) cos 6 thet...
01:45
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- Prove that (sin(90^(@)-theta))/(1+sintheta)+(costheta)/(1-cos(90^(@)-t...
02:52
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- Prove that tantheta/(1-cottheta)+cottheta/(1-tantheta)=1+secthetacosec...
07:03
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- Prove that (sin(90^(@)-theta))/(1-tantheta)+(cos(90^(@)-theta))/(1-cot...
04:38
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- Prove that (tan(90^(@)-theta))/(cosectheta+1)+(cosectheta+1)/cottheta=...
03:27
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- Prove that (cottheta+cosectheta-1)/(cottheta-cosectheta+1)=cosectheta+...
02:18
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- Prove that (1+cottheta-cosectheta)(1+tantheta+sectheta)=2
03:01
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- Prove that (sintheta-costheta+1)/(sintheta+costheta-1)=(1)/(cos theta-...
04:45
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- Prove that 1/(cosectheta-cottheta)-1/(sintheta)=1/(sintheta)-1/(cosect...
02:46
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- If tantheta=ntanalpha and sintheta=msinalpha then prove that cos^(2)th...
05:37
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- If sintheta,costheta and tantheta are in G.P., then prove that cot^(6)...
02:58
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- Find the value of cos 60^(@) + sin 60^(@)
01:01
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- Find the value of cos 90^(@) + sin 90^(@)
00:46
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- A1.5 m tall boy is standing at some distance from a 30 m tall building...
07:40
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- Find the value of cos120^(@)
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