If $\sin x=\cos x$ and $x$ is acute, state the value of $x$.

Important Questions on Trigonometrical Ratios of Standard Angles [Including Evaluation of an Expression Involving Trigonometric Ratios]

EASY

9th ICSE

IMPORTANT

Concise Mathematics I.C.S.E - Class IX>Chapter 23 - Trigonometrical Ratios of Standard Angles [Including Evaluation of an Expression Involving Trigonometric Ratios]>EXERCISE>Q 7

If $\sec A=cosecA$ and $0°\le \mathrm{A}\le 90°$, state the value of $A$.

EASY

9th ICSE

IMPORTANT

Concise Mathematics I.C.S.E - Class IX>Chapter 23 - Trigonometrical Ratios of Standard Angles [Including Evaluation of an Expression Involving Trigonometric Ratios]>EXERCISE>Q 7

If $\tan \theta =\cot \theta$ and $0°\le \theta \le 90°$, state the value of $\theta$.

EASY

9th ICSE

IMPORTANT

Concise Mathematics I.C.S.E - Class IX>Chapter 23 - Trigonometrical Ratios of Standard Angles [Including Evaluation of an Expression Involving Trigonometric Ratios]>EXERCISE>Q 7

If $\sin x=\cos y$; write the relation between $x$ and $y$, if both the angles $x$ and $y$ are acute.

EASY

9th ICSE

IMPORTANT

Concise Mathematics I.C.S.E - Class IX>Chapter 23 - Trigonometrical Ratios of Standard Angles [Including Evaluation of an Expression Involving Trigonometric Ratios]>EXERCISE>Q 8

If $\sin x=\cos y$, then $x+y={45}^0$, write true or false.

EASY

9th ICSE

IMPORTANT

Concise Mathematics I.C.S.E - Class IX>Chapter 23 - Trigonometrical Ratios of Standard Angles [Including Evaluation of an Expression Involving Trigonometric Ratios]>EXERCISE>Q 8

$\sec \theta .\cot \theta =cosec\theta$; write true or false.

EASY

9th ICSE

IMPORTANT

Concise Mathematics I.C.S.E - Class IX>Chapter 23 - Trigonometrical Ratios of Standard Angles [Including Evaluation of an Expression Involving Trigonometric Ratios]>EXERCISE>Q 8

For any angle $\theta$, state the value of ${\sin }^2\theta +{\cos }^2\theta$.

EASY

9th ICSE

IMPORTANT

Concise Mathematics I.C.S.E - Class IX>Chapter 23 - Trigonometrical Ratios of Standard Angles [Including Evaluation of an Expression Involving Trigonometric Ratios]>EXERCISE>Q 9

State for any acute angle $\theta$ whether: $\sin \theta$ increases or decreases as $\theta$ increases.

EASY

9th ICSE

IMPORTANT

Concise Mathematics I.C.S.E - Class IX>Chapter 23 - Trigonometrical Ratios of Standard Angles [Including Evaluation of an Expression Involving Trigonometric Ratios]>EXERCISE>Q 9

State for any acute angle $\theta$ whether: $\cos \theta$ increases or decreases as $\theta$ increases.