In an isoceles triangle ABC, AB = AC and...

In an isoceles triangle ABC, AB = AC and `angleBAC=90^(@)`, the bisector of `angleBAC` intersects the side BC at the point D. Prove that `(sec angleACD)/(sin angleCAD)="cosec"^(2)angleCAD.`

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CALCUTTA BOOK HOUSE-TRIGONOMETRIC RATIOS AND TRIGONOMETRIC IDENTITIES -EXERCISE

In an isoceles triangle ABC, AB = AC and angleBAC=90^(@), the bisector...
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Find the value of cos(-1170^(@)).
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If (cos theta)/(1-sin theta)-(costheta)/(1+sin theta)=2, then find the...
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If (cos x)/(cosy)=n and (sinx)/(siny)=m, what is the value of (m^(2)...
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If x cos 60^(@)+y cos0^(@)=3 and 4x sin 30^(@) -y cot 45^(@)=2, then ...
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