keyword

best book on trigonometry

Monthly search volume and cost-per-click data for "best book on trigonometry" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=best+book+on+trigonometry&country=us" +--------------+------------------+ | volume | 90 | | cpc | $0.58 | | competition | 1 | | country | US | | updated | 2026-06-08 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
books on trigonometry	480	$0.5	10/20
best book for trigonometry	140	$0.82	16/20
best books on trigonometry	140	$0.82	14/20
best trigonometry book	140	$0.68	11/20
best trigonometry textbook	140	$0.68	10/20
best trigonometry books	90	$0.58	15/20
best trig book	90	$0.58	14/20
best trigonometry textbooks	70	$0.52	10/20
trigonometry book for beginners	20	$0	9/20
trigonometry books for beginners	20	$2.93	9/20

Similar volume + high overlap = same search intent. You can target either keyword.

# for AI agents

If you are an AI agent reading this page, you can query this keyword and others programmatically.

$ curl "https://app.seodata.dev/v1/keyword?q=best+book+on+trigonometry&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 500/month, $4.99/mo unlimited

Full API spec: llms.txt