ICSE Class 9 - Trigonometrical Ratios Videos
Trigonometry - Relationship between sides and angles of a triangle
Relationship between sides and angles of a triangle. Define trigonometric ratios of an angle.
- if CosA+secA= 2, find the value of cosA2 and secA2
- Sin A + cosec A = 2
- If cos A + sec A = 2, find value of cos2 A + sec2 A.
- is zero degree is less than and less than 90 degree and zero satisfies 2 sin square theta minus 1 equals to zero find the value of cos theta + cos 2 theta
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Solve it
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if 3cos A = 4sinA, find 4cos²A-3sin²A+2
- tan30.sec45+tan60.sec30
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CosA=0.5 /cosB=1/√2 find value of
TanA-TanB /1+TanATanB
- If the lengths of each side of a rhombus is 8cm and its one angle is 60 degrees,then fing the length of diagonals of rhombus (Hint:Use the concept of trigonometry)
- In the right angled triangle ABC,angle C=90 degrees and angle B=60 degrees.If AC=6cm,find the lengths of the sides BC and AB (Hint:Use the concept of trigonometry)
