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Step by step text solution for IftriangleABCright-angled at B,AB=24cm,BC=7cm.Determine:(i)sinA,cosA by MATHS experts to help you in doubts & scoring excellent marks in Class 10 exams.
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R G PUBLICATION-INTRODUCTION TO TRIGONOMETRY-EXERCISE
- IftriangleABCright-angled at B,AB=24cm,BC=7cm.Determine:(i)sinA,cosA
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- IntriangleABCright-angled at B,AB=24cm,BC=7cm.Determine:(ii)sinC,cosC
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- InFig.8.13,find tanP-cot R
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- If sinA=3/4,calculate cosA and tanA
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- Given 15 cotA=8,find sin A and sec A.
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- Givensectheta=13/12,calculate all other trigonometric ratios.
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- If angleA and angle B are acute such that cosA=cosB,then show that ang...
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- If cottheta=7/8evaluate:(i)((1+sintheta)(1-sintheta))/((1+costheta)(1-...
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- If cottheta=7/8evaluate:(ii)cot^2 theta
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- If 3 cotA=4,check whether(1-tan^2A)/(1+tan^2A)=Cos^2A-Sin^2A or not.
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- In triangle ABC,right-angled at B if tanA=1/sqrt3,find the value of:(i...
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- In triangle ABC,right-angled at B if tanA=1/sqrt3,find the value of:(i...
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- In trianglePQR,right-angled at Q,PR+QR=25cm and PQ=5cm.Determine the v...
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- State whether the following are true or false.Justify your answer.(i)T...
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- State whether the following are true or false.Justify your answer.(ii)...
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- State whether the following are true or false.Justify your answer.(iii...
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- State whether the following are true or false.Justify your answer.(iv)...
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- State whether the following are true or false.Justify your answer.(v)s...
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- Evaluate the following:(i)sin 60^@ cos30^@+sin 30^@ cos 60^@
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- Evaluate the following:(ii)2 tan^@ 45^@+cos^2 30^@-sin^2 60^@
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