Punjab Board - Class 9

Secondary Mathematics question bank (Mathematics (ਗਣਿਤ - PSTSE Foundation))

Practice 618 free Punjab Board - Class 9 Mathematics (ਗਣਿਤ - PSTSE Foundation) - Secondary Mathematics questions with answers and step-by-step solutions.

Q1.

ਅੰਕਗਣਿਤਕ ਲੜੀਆਂ (Arithmetic Progressions - AP): 'ਸੰਖਿਆ ਪ੍ਰਣਾਲੀ (Real Numbers)' AP ਲੜੀ ਦਾ $n$-ਵਾਂ ਪਦ ਤੇ ਜੋੜਫਲ ਕੀ ਹੈ?


(A)
$a_n = a + (n-1)d$ ਅਤੇ $S_n = \frac{n}{2}[2a + (n-1)d] = \frac{n}{2}(a+l)$ ($ਸੰਖਿਆ ਪ੍ਰਣਾਲੀ (Real Numbers)$)
(B)
$a_n = a \cdot d^{{n-1}}$
(C)
ਸਾਂਝਾ ਅੰਤਰ ਹਮੇਸ਼ਾ ਧਨਾਤਮਕ ਹੁੰਦਾ ਹੈ
(D)
ਇਹਨਾਂ ਵਿੱਚੋਂ ਕੋਈ ਨਹੀਂ
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Q2.

ਤ੍ਰਿਕੋਣਮਿਤੀ (Trigonometry - 10th Board Exam): 'ਸੰਖਿਆ ਪ੍ਰਣਾਲੀ (Real Numbers)' ਦਾ ਤ੍ਰਿਕੋਣਮਿਤੀ ਤਤਸਮਕ ਕੀ ਹੈ?


(A)
$\sin^2 \theta + \cos^2 \theta = 1$, $1 + \tan^2 \theta = \sec^2 \theta$, $1 + \cot^2 \theta = \csc^2 \theta$ ($ਸੰਖਿਆ ਪ੍ਰਣਾਲੀ (Real Numbers)$)
(B)
$\sin^2 \theta - \cos^2 \theta = 1$
(C)
$\tan \theta = \frac{{\cos \theta}}{{\sin \theta}}$
(D)
ਇਹਨਾਂ ਵਿੱਚੋਂ ਕੋਈ ਨਹੀਂ
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