Question

Give Important questions of Trigonometry chapter in a separate way and I want important questions only from
R. S Aggarwal


⏩ Trigonometric Ratios


⏩ T- Ratios of Some Particular Angles


⏩ Trigonometric Ratios of Complementary Angles



⏩ Trigonometric Identities


Maximum 5 questions of each topics above


Class 10


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Answer 1

$\large\boxed{IMPORTANT \: \: QUESTIONS}$


$\large \bf \underline{→ Trigonometric \: ratios.}$

1. In ∆ABC, right-angled at B, AB = 5cm and BC = 12cm. Find the value of sin A, sin C and secC.

2. In a ∆ABC, <B = 90°, AB = 7cm and ( AC - BC ) = 1cm. Find the value of sin A, cos A, sin C and cos C.

3. In a ∆ABC, <C = 90° and tan A = 1/√3. find the value of:
(a) (sin A • cos B + cos A • sin B).

4. If <A and <B are acute angles such that cosA =cos B , then prove that <A = <B.

$5. If \: 3 \tan\theta = 4. \: show \: that \: (\frac{4 \cos\theta - \sin\theta }{2 \cos \theta + \sin \theta} ) = \frac{4}{5} .$



$\large \bf \underline{ \rightarrow T-Ratios \: of \: Some \: particular \: Angles.}$

$\boxed{See \: the \: attachment \: 1. }$



$\large \bf \underline{→ Trigonometric \: Ratios \: of \: Complementary \: Angles.}$

$\boxed{See \: the \: attachment \: 2.}$



$\large \bf \underline{→ Trigonometric \: Identities.}$

$\boxed{See \: the \: attachment \: 3.}$


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