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Deepak BoraNewbie

Asked: July 14, 2020In: CBSE, ICSE

Prove that : ( cos A–sin A+1)/( cos A +sin A–1) = cosec A + cot A, (using the identity cosec^2A = 1+cot2A).

Prove the following identities, where the angles involved are acute angles for which the expressions are defined. NCERT Maths Solutions class ...Read more

Deepak BoraNewbie

Asked: July 14, 2020In: CBSE

Express the trigonometric ratios sin A, sec A and tan A in terms of cot A.

Using the standard Trigonometry formulas/identities convert these rations in terms of cot A.

Deepak BoraNewbie

Asked: July 14, 2020In: CBSE

In ∆ PQR, right-angled at Q, PR + QR = 25 cm and PQ = 5 cm. Determine the values of sin P, cos P and tan P

This is a very important question for CBSE Boards exams, NCERT Maths solutions class 10th trigonometry exercise 8.1 question number ...Read more

Deepak BoraNewbie

Asked: July 14, 2020In: CBSE

In ∆ ABC, right-angled at B, AB = 24 cm, BC = 7 cm. Determine: (i) sin A, cos A (ii) sin C, cos C

This is the first question of exercise 8.1, chapter Introduction to Trigonometry, NCERT

Deepak BoraNewbie

Asked: July 14, 2020In: CBSE, ICSE

In what ratio is the line joining the points (4,2) and (3,-5) divided by the x-axis? Also find the coordinates of the point of division.

This is a question based on Section Formula. In what ratio is the line joining the points (4,2) and (3,-5) divided ...Read more

Deepak BoraNewbie

Asked: July 14, 2020In: ICSE

A straight line makes on the coordinate axes positive intercepts whose sum is 7.If the line passes through the point (-3,8), find its equation.

Solve this another important question from coordinate geometry, chapter (equation of a straight line). A straight line makes on the coordinate ...Read more